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Finding the Fourth Proportional to 108,442.68, 149,653.58 and 60,695.64

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Solution

The fourth proportional to 108,442.68, 149,653.58 and 60,695.64 is: 83,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,442.68 : 149,653.58 = 60,695.64 : x
  2. Step 2: Convert to fraction form
    108,442.68/149,653.58 = 60,695.64/x
  3. Step 3: Cross multiply
    108,442.68x = 149,653.58 × 60,695.64
  4. Step 4: Simplify right side
    108,442.68x = 9,083,319,816.39
  5. Step 5: Solve for x
    x = 9,083,319,816.39/108,442.68
  6. Step 6: Final answer
    x = 83,761.48

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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.