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Finding the Fourth Proportional to 266,083.38, 398,913.15 and 153,636.04

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Solution

The fourth proportional to 266,083.38, 398,913.15 and 153,636.04 is: 230,331.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,083.38 : 398,913.15 = 153,636.04 : x
  2. Step 2: Convert to fraction form
    266,083.38/398,913.15 = 153,636.04/x
  3. Step 3: Cross multiply
    266,083.38x = 398,913.15 × 153,636.04
  4. Step 4: Simplify right side
    266,083.38x = 61,287,437,744.70
  5. Step 5: Solve for x
    x = 61,287,437,744.70/266,083.38
  6. Step 6: Final answer
    x = 230,331.70

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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.