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Finding the Fourth Proportional to 113,006.40, 169,576.80 and 42,892.80

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Solution

The fourth proportional to 113,006.40, 169,576.80 and 42,892.80 is: 64,364.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,006.40 : 169,576.80 = 42,892.80 : x
  2. Step 2: Convert to fraction form
    113,006.40/169,576.80 = 42,892.80/x
  3. Step 3: Cross multiply
    113,006.40x = 169,576.80 × 42,892.80
  4. Step 4: Simplify right side
    113,006.40x = 7,273,623,767.04
  5. Step 5: Solve for x
    x = 7,273,623,767.04/113,006.40
  6. Step 6: Final answer
    x = 64,364.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.