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Finding the Fourth Proportional to 108,454.73, 149,665.78 and 60,707.93

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Solution

The fourth proportional to 108,454.73, 149,665.78 and 60,707.93 is: 83,775.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,454.73 : 149,665.78 = 60,707.93 : x
  2. Step 2: Convert to fraction form
    108,454.73/149,665.78 = 60,707.93/x
  3. Step 3: Cross multiply
    108,454.73x = 149,665.78 × 60,707.93
  4. Step 4: Simplify right side
    108,454.73x = 9,085,899,695.64
  5. Step 5: Solve for x
    x = 9,085,899,695.64/108,454.73
  6. Step 6: Final answer
    x = 83,775.97

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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.