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Finding the Fourth Proportional to 108,241.98, 149,374.56 and 62,920.86

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Solution

The fourth proportional to 108,241.98, 149,374.56 and 62,920.86 is: 86,831.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,241.98 : 149,374.56 = 62,920.86 : x
  2. Step 2: Convert to fraction form
    108,241.98/149,374.56 = 62,920.86/x
  3. Step 3: Cross multiply
    108,241.98x = 149,374.56 × 62,920.86
  4. Step 4: Simplify right side
    108,241.98x = 9,398,775,777.32
  5. Step 5: Solve for x
    x = 9,398,775,777.32/108,241.98
  6. Step 6: Final answer
    x = 86,831.15

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1.5x scale

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.