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Finding the Fourth Proportional to 120,576,121.60, 169,033,318.40 and 120,576,121.60

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Solution

The fourth proportional to 120,576,121.60, 169,033,318.40 and 120,576,121.60 is: 169,033,318.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,576,121.60 : 169,033,318.40 = 120,576,121.60 : x
  2. Step 2: Convert to fraction form
    120,576,121.60/169,033,318.40 = 120,576,121.60/x
  3. Step 3: Cross multiply
    120,576,121.60x = 169,033,318.40 × 120,576,121.60
  4. Step 4: Simplify right side
    120,576,121.60x = 20,381,381,953,849,916
  5. Step 5: Solve for x
    x = 20,381,381,953,849,916/120,576,121.60
  6. Step 6: Final answer
    x = 169,033,318.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.