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Finding the Fourth Proportional to 108,447.48, 149,655.78 and 60,700.68

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Solution

The fourth proportional to 108,447.48, 149,655.78 and 60,700.68 is: 83,765.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,447.48 : 149,655.78 = 60,700.68 : x
  2. Step 2: Convert to fraction form
    108,447.48/149,655.78 = 60,700.68/x
  3. Step 3: Cross multiply
    108,447.48x = 149,655.78 × 60,700.68
  4. Step 4: Simplify right side
    108,447.48x = 9,084,207,611.93
  5. Step 5: Solve for x
    x = 9,084,207,611.93/108,447.48
  6. Step 6: Final answer
    x = 83,765.96

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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.