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Finding the Fourth Proportional to 374,005.96, 561,013.90 and 124,688.04

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Solution

The fourth proportional to 374,005.96, 561,013.90 and 124,688.04 is: 187,033.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,005.96 : 561,013.90 = 124,688.04 : x
  2. Step 2: Convert to fraction form
    374,005.96/561,013.90 = 124,688.04/x
  3. Step 3: Cross multiply
    374,005.96x = 561,013.90 × 124,688.04
  4. Step 4: Simplify right side
    374,005.96x = 69,951,723,603.76
  5. Step 5: Solve for x
    x = 69,951,723,603.76/374,005.96
  6. Step 6: Final answer
    x = 187,033.71

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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.