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Finding the Fourth Proportional to 99,080.75, 136,755.75 and 60,849.41

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Solution

The fourth proportional to 99,080.75, 136,755.75 and 60,849.41 is: 83,987.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,080.75 : 136,755.75 = 60,849.41 : x
  2. Step 2: Convert to fraction form
    99,080.75/136,755.75 = 60,849.41/x
  3. Step 3: Cross multiply
    99,080.75x = 136,755.75 × 60,849.41
  4. Step 4: Simplify right side
    99,080.75x = 8,321,506,701.61
  5. Step 5: Solve for x
    x = 8,321,506,701.61/99,080.75
  6. Step 6: Final answer
    x = 83,987.12

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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.