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Finding the Fourth Proportional to 125,100.59, 172,631.97 and 73,410.76

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Solution

The fourth proportional to 125,100.59, 172,631.97 and 73,410.76 is: 101,302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,100.59 : 172,631.97 = 73,410.76 : x
  2. Step 2: Convert to fraction form
    125,100.59/172,631.97 = 73,410.76/x
  3. Step 3: Cross multiply
    125,100.59x = 172,631.97 × 73,410.76
  4. Step 4: Simplify right side
    125,100.59x = 12,673,044,118.00
  5. Step 5: Solve for x
    x = 12,673,044,118.00/125,100.59
  6. Step 6: Final answer
    x = 101,302.83

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1.5x scale

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.