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Finding the Fourth Proportional to 124,489.60, 171,779.44 and 70,773.48

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Solution

The fourth proportional to 124,489.60, 171,779.44 and 70,773.48 is: 97,658.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,489.60 : 171,779.44 = 70,773.48 : x
  2. Step 2: Convert to fraction form
    124,489.60/171,779.44 = 70,773.48/x
  3. Step 3: Cross multiply
    124,489.60x = 171,779.44 × 70,773.48
  4. Step 4: Simplify right side
    124,489.60x = 12,157,428,761.25
  5. Step 5: Solve for x
    x = 12,157,428,761.25/124,489.60
  6. Step 6: Final answer
    x = 97,658.19

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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.