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Finding the Fourth Proportional to 83,334.80, 124,637.70 and 74,513.90

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Solution

The fourth proportional to 83,334.80, 124,637.70 and 74,513.90 is: 111,444.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,334.80 : 124,637.70 = 74,513.90 : x
  2. Step 2: Convert to fraction form
    83,334.80/124,637.70 = 74,513.90/x
  3. Step 3: Cross multiply
    83,334.80x = 124,637.70 × 74,513.90
  4. Step 4: Simplify right side
    83,334.80x = 9,287,241,114.03
  5. Step 5: Solve for x
    x = 9,287,241,114.03/83,334.80
  6. Step 6: Final answer
    x = 111,444.93

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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.