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Finding the Fourth Proportional to 60,240.48, 83,170.86 and 38,739.90

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Solution

The fourth proportional to 60,240.48, 83,170.86 and 38,739.90 is: 53,486.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,240.48 : 83,170.86 = 38,739.90 : x
  2. Step 2: Convert to fraction form
    60,240.48/83,170.86 = 38,739.90/x
  3. Step 3: Cross multiply
    60,240.48x = 83,170.86 × 38,739.90
  4. Step 4: Simplify right side
    60,240.48x = 3,222,030,799.31
  5. Step 5: Solve for x
    x = 3,222,030,799.31/60,240.48
  6. Step 6: Final answer
    x = 53,486.14

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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.