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Finding the Fourth Proportional to 108,000.78, 149,040.48 and 60,254.02

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Solution

The fourth proportional to 108,000.78, 149,040.48 and 60,254.02 is: 83,150.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,000.78 : 149,040.48 = 60,254.02 : x
  2. Step 2: Convert to fraction form
    108,000.78/149,040.48 = 60,254.02/x
  3. Step 3: Cross multiply
    108,000.78x = 149,040.48 × 60,254.02
  4. Step 4: Simplify right side
    108,000.78x = 8,980,288,062.73
  5. Step 5: Solve for x
    x = 8,980,288,062.73/108,000.78
  6. Step 6: Final answer
    x = 83,150.21

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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.