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Finding the Fourth Proportional to 125,363.35, 188,023.16 and 57,889.64

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Solution

The fourth proportional to 125,363.35, 188,023.16 and 57,889.64 is: 86,824.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,363.35 : 188,023.16 = 57,889.64 : x
  2. Step 2: Convert to fraction form
    125,363.35/188,023.16 = 57,889.64/x
  3. Step 3: Cross multiply
    125,363.35x = 188,023.16 × 57,889.64
  4. Step 4: Simplify right side
    125,363.35x = 10,884,592,248.67
  5. Step 5: Solve for x
    x = 10,884,592,248.67/125,363.35
  6. Step 6: Final answer
    x = 86,824.36

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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.