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Finding the Fourth Proportional to 108,001.78, 149,041.86 and 60,255.02

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Solution

The fourth proportional to 108,001.78, 149,041.86 and 60,255.02 is: 83,151.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,001.78 : 149,041.86 = 60,255.02 : x
  2. Step 2: Convert to fraction form
    108,001.78/149,041.86 = 60,255.02/x
  3. Step 3: Cross multiply
    108,001.78x = 149,041.86 × 60,255.02
  4. Step 4: Simplify right side
    108,001.78x = 8,980,520,255.14
  5. Step 5: Solve for x
    x = 8,980,520,255.14/108,001.78
  6. Step 6: Final answer
    x = 83,151.59

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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.