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Finding the Fourth Proportional to 86,652.80, 130,108.80 and 60,473.60

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Solution

The fourth proportional to 86,652.80, 130,108.80 and 60,473.60 is: 90,800.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,652.80 : 130,108.80 = 60,473.60 : x
  2. Step 2: Convert to fraction form
    86,652.80/130,108.80 = 60,473.60/x
  3. Step 3: Cross multiply
    86,652.80x = 130,108.80 × 60,473.60
  4. Step 4: Simplify right side
    86,652.80x = 7,868,147,527.68
  5. Step 5: Solve for x
    x = 7,868,147,527.68/86,652.80
  6. Step 6: Final answer
    x = 90,800.85

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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.