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Finding the Fourth Proportional to 107,447.82, 148,230.30 and 71,602.92

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Solution

The fourth proportional to 107,447.82, 148,230.30 and 71,602.92 is: 98,780.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,447.82 : 148,230.30 = 71,602.92 : x
  2. Step 2: Convert to fraction form
    107,447.82/148,230.30 = 71,602.92/x
  3. Step 3: Cross multiply
    107,447.82x = 148,230.30 × 71,602.92
  4. Step 4: Simplify right side
    107,447.82x = 10,613,722,312.48
  5. Step 5: Solve for x
    x = 10,613,722,312.48/107,447.82
  6. Step 6: Final answer
    x = 98,780.25

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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.