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Finding the Fourth Proportional to 189,803.33, 261,931.71 and 113,329.11

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Solution

The fourth proportional to 189,803.33, 261,931.71 and 113,329.11 is: 156,396.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,803.33 : 261,931.71 = 113,329.11 : x
  2. Step 2: Convert to fraction form
    189,803.33/261,931.71 = 113,329.11/x
  3. Step 3: Cross multiply
    189,803.33x = 261,931.71 × 113,329.11
  4. Step 4: Simplify right side
    189,803.33x = 29,684,487,858.40
  5. Step 5: Solve for x
    x = 29,684,487,858.40/189,803.33
  6. Step 6: Final answer
    x = 156,396.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.