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Finding the Fourth Proportional to 65,278.60, 98,126.70 and 60,656.20

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Solution

The fourth proportional to 65,278.60, 98,126.70 and 60,656.20 is: 91,178.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,278.60 : 98,126.70 = 60,656.20 : x
  2. Step 2: Convert to fraction form
    65,278.60/98,126.70 = 60,656.20/x
  3. Step 3: Cross multiply
    65,278.60x = 98,126.70 × 60,656.20
  4. Step 4: Simplify right side
    65,278.60x = 5,951,992,740.54
  5. Step 5: Solve for x
    x = 5,951,992,740.54/65,278.60
  6. Step 6: Final answer
    x = 91,178.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.