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Finding the Fourth Proportional to 113,481, 170,115.66 and 38,549.93

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Solution

The fourth proportional to 113,481, 170,115.66 and 38,549.93 is: 57,788.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,481 : 170,115.66 = 38,549.93 : x
  2. Step 2: Convert to fraction form
    113,481/170,115.66 = 38,549.93/x
  3. Step 3: Cross multiply
    113,481x = 170,115.66 × 38,549.93
  4. Step 4: Simplify right side
    113,481x = 6,557,945,934.33
  5. Step 5: Solve for x
    x = 6,557,945,934.33/113,481
  6. Step 6: Final answer
    x = 57,788.93

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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.