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Finding the Fourth Proportional to 107,878.80, 148,874.70 and 60,127.02

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Solution

The fourth proportional to 107,878.80, 148,874.70 and 60,127.02 is: 82,976.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,878.80 : 148,874.70 = 60,127.02 : x
  2. Step 2: Convert to fraction form
    107,878.80/148,874.70 = 60,127.02/x
  3. Step 3: Cross multiply
    107,878.80x = 148,874.70 × 60,127.02
  4. Step 4: Simplify right side
    107,878.80x = 8,951,392,064.39
  5. Step 5: Solve for x
    x = 8,951,392,064.39/107,878.80
  6. Step 6: Final answer
    x = 82,976.38

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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.