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Finding the Fourth Proportional to 69,386.52, 95,748.07 and 39,174.83

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Solution

The fourth proportional to 69,386.52, 95,748.07 and 39,174.83 is: 54,058.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,386.52 : 95,748.07 = 39,174.83 : x
  2. Step 2: Convert to fraction form
    69,386.52/95,748.07 = 39,174.83/x
  3. Step 3: Cross multiply
    69,386.52x = 95,748.07 × 39,174.83
  4. Step 4: Simplify right side
    69,386.52x = 3,750,913,690.46
  5. Step 5: Solve for x
    x = 3,750,913,690.46/69,386.52
  6. Step 6: Final answer
    x = 54,058.25

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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.