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Finding the Fourth Proportional to 69,216.60, 103,824.90 and 60,468.60

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Solution

The fourth proportional to 69,216.60, 103,824.90 and 60,468.60 is: 90,702.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,216.60 : 103,824.90 = 60,468.60 : x
  2. Step 2: Convert to fraction form
    69,216.60/103,824.90 = 60,468.60/x
  3. Step 3: Cross multiply
    69,216.60x = 103,824.90 × 60,468.60
  4. Step 4: Simplify right side
    69,216.60x = 6,278,146,348.14
  5. Step 5: Solve for x
    x = 6,278,146,348.14/69,216.60
  6. Step 6: Final answer
    x = 90,702.90

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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.