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Finding the Fourth Proportional to 125,600.91, 189,239.11 and 113,606.92

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Solution

The fourth proportional to 125,600.91, 189,239.11 and 113,606.92 is: 171,168.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,600.91 : 189,239.11 = 113,606.92 : x
  2. Step 2: Convert to fraction form
    125,600.91/189,239.11 = 113,606.92/x
  3. Step 3: Cross multiply
    125,600.91x = 189,239.11 × 113,606.92
  4. Step 4: Simplify right side
    125,600.91x = 21,498,872,430.64
  5. Step 5: Solve for x
    x = 21,498,872,430.64/125,600.91
  6. Step 6: Final answer
    x = 171,168.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.