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Finding the Fourth Proportional to 266,363.71, 399,542.83 and 153,972.41

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Solution

The fourth proportional to 266,363.71, 399,542.83 and 153,972.41 is: 230,957.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,363.71 : 399,542.83 = 153,972.41 : x
  2. Step 2: Convert to fraction form
    266,363.71/399,542.83 = 153,972.41/x
  3. Step 3: Cross multiply
    266,363.71x = 399,542.83 × 153,972.41
  4. Step 4: Simplify right side
    266,363.71x = 61,518,572,433.32
  5. Step 5: Solve for x
    x = 61,518,572,433.32/266,363.71
  6. Step 6: Final answer
    x = 230,957.03

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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.