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Finding the Fourth Proportional to 125,887.85, 188,787.76 and 37,117.79

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Solution

The fourth proportional to 125,887.85, 188,787.76 and 37,117.79 is: 55,663.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,887.85 : 188,787.76 = 37,117.79 : x
  2. Step 2: Convert to fraction form
    125,887.85/188,787.76 = 37,117.79/x
  3. Step 3: Cross multiply
    125,887.85x = 188,787.76 × 37,117.79
  4. Step 4: Simplify right side
    125,887.85x = 7,007,384,430.25
  5. Step 5: Solve for x
    x = 7,007,384,430.25/125,887.85
  6. Step 6: Final answer
    x = 55,663.71

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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.