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Finding the Fourth Proportional to 266,981.96, 400,253.38 and 124,756.88

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Solution

The fourth proportional to 266,981.96, 400,253.38 and 124,756.88 is: 187,032.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,981.96 : 400,253.38 = 124,756.88 : x
  2. Step 2: Convert to fraction form
    266,981.96/400,253.38 = 124,756.88/x
  3. Step 3: Cross multiply
    266,981.96x = 400,253.38 × 124,756.88
  4. Step 4: Simplify right side
    266,981.96x = 49,934,362,898.25
  5. Step 5: Solve for x
    x = 49,934,362,898.25/266,981.96
  6. Step 6: Final answer
    x = 187,032.72

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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.