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Finding the Fourth Proportional to 125,088.15, 172,619.57 and 67,727.01

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Solution

The fourth proportional to 125,088.15, 172,619.57 and 67,727.01 is: 93,462.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,088.15 : 172,619.57 = 67,727.01 : x
  2. Step 2: Convert to fraction form
    125,088.15/172,619.57 = 67,727.01/x
  3. Step 3: Cross multiply
    125,088.15x = 172,619.57 × 67,727.01
  4. Step 4: Simplify right side
    125,088.15x = 11,691,007,343.59
  5. Step 5: Solve for x
    x = 11,691,007,343.59/125,088.15
  6. Step 6: Final answer
    x = 93,462.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.