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Finding the Fourth Proportional to 65,442.33, 98,188.10 and 39,165.53

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Solution

The fourth proportional to 65,442.33, 98,188.10 and 39,165.53 is: 58,763.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,442.33 : 98,188.10 = 39,165.53 : x
  2. Step 2: Convert to fraction form
    65,442.33/98,188.10 = 39,165.53/x
  3. Step 3: Cross multiply
    65,442.33x = 98,188.10 × 39,165.53
  4. Step 4: Simplify right side
    65,442.33x = 3,845,588,436.30
  5. Step 5: Solve for x
    x = 3,845,588,436.30/65,442.33
  6. Step 6: Final answer
    x = 58,763.01

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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.