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Finding the Fourth Proportional to 484,052.96, 726,114.12 and 129,065.12

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Solution

The fourth proportional to 484,052.96, 726,114.12 and 129,065.12 is: 193,606.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,052.96 : 726,114.12 = 129,065.12 : x
  2. Step 2: Convert to fraction form
    484,052.96/726,114.12 = 129,065.12/x
  3. Step 3: Cross multiply
    484,052.96x = 726,114.12 × 129,065.12
  4. Step 4: Simplify right side
    484,052.96x = 93,716,006,031.49
  5. Step 5: Solve for x
    x = 93,716,006,031.49/484,052.96
  6. Step 6: Final answer
    x = 193,606.93

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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.