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Finding the Fourth Proportional to 61,442.76, 84,765.24 and 38,741.16

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Solution

The fourth proportional to 61,442.76, 84,765.24 and 38,741.16 is: 53,446.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,442.76 : 84,765.24 = 38,741.16 : x
  2. Step 2: Convert to fraction form
    61,442.76/84,765.24 = 38,741.16/x
  3. Step 3: Cross multiply
    61,442.76x = 84,765.24 × 38,741.16
  4. Step 4: Simplify right side
    61,442.76x = 3,283,903,725.28
  5. Step 5: Solve for x
    x = 3,283,903,725.28/61,442.76
  6. Step 6: Final answer
    x = 53,446.55

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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.