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Finding the Fourth Proportional to 107,988.66, 149,024.07 and 60,239.16

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Solution

The fourth proportional to 107,988.66, 149,024.07 and 60,239.16 is: 83,129.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,988.66 : 149,024.07 = 60,239.16 : x
  2. Step 2: Convert to fraction form
    107,988.66/149,024.07 = 60,239.16/x
  3. Step 3: Cross multiply
    107,988.66x = 149,024.07 × 60,239.16
  4. Step 4: Simplify right side
    107,988.66x = 8,977,084,796.58
  5. Step 5: Solve for x
    x = 8,977,084,796.58/107,988.66
  6. Step 6: Final answer
    x = 83,129.88

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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.