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Finding the Fourth Proportional to 492,359.70, 738,663.96 and 137,373.50

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Solution

The fourth proportional to 492,359.70, 738,663.96 and 137,373.50 is: 206,094.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,359.70 : 738,663.96 = 137,373.50 : x
  2. Step 2: Convert to fraction form
    492,359.70/738,663.96 = 137,373.50/x
  3. Step 3: Cross multiply
    492,359.70x = 738,663.96 × 137,373.50
  4. Step 4: Simplify right side
    492,359.70x = 101,472,853,509.06
  5. Step 5: Solve for x
    x = 101,472,853,509.06/492,359.70
  6. Step 6: Final answer
    x = 206,094.96

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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.