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Finding the Fourth Proportional to 114,931.32, 172,027.56 and 61,489.92

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Solution

The fourth proportional to 114,931.32, 172,027.56 and 61,489.92 is: 92,037.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,931.32 : 172,027.56 = 61,489.92 : x
  2. Step 2: Convert to fraction form
    114,931.32/172,027.56 = 61,489.92/x
  3. Step 3: Cross multiply
    114,931.32x = 172,027.56 × 61,489.92
  4. Step 4: Simplify right side
    114,931.32x = 10,577,960,902.20
  5. Step 5: Solve for x
    x = 10,577,960,902.20/114,931.32
  6. Step 6: Final answer
    x = 92,037.23

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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.