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Finding the Fourth Proportional to 462,299.16, 693,472.50 and 129,901.08

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Solution

The fourth proportional to 462,299.16, 693,472.50 and 129,901.08 is: 194,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,299.16 : 693,472.50 = 129,901.08 : x
  2. Step 2: Convert to fraction form
    462,299.16/693,472.50 = 129,901.08/x
  3. Step 3: Cross multiply
    462,299.16x = 693,472.50 × 129,901.08
  4. Step 4: Simplify right side
    462,299.16x = 90,082,826,700.30
  5. Step 5: Solve for x
    x = 90,082,826,700.30/462,299.16
  6. Step 6: Final answer
    x = 194,858.30

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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.