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Finding the Fourth Proportional to 67,807.20, 101,422.80 and 60,837.60

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Solution

The fourth proportional to 67,807.20, 101,422.80 and 60,837.60 is: 90,998.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,807.20 : 101,422.80 = 60,837.60 : x
  2. Step 2: Convert to fraction form
    67,807.20/101,422.80 = 60,837.60/x
  3. Step 3: Cross multiply
    67,807.20x = 101,422.80 × 60,837.60
  4. Step 4: Simplify right side
    67,807.20x = 6,170,319,737.28
  5. Step 5: Solve for x
    x = 6,170,319,737.28/67,807.20
  6. Step 6: Final answer
    x = 90,998.00

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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.