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Finding the Fourth Proportional to 88,679.60, 133,025.80 and 53,543.60

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Solution

The fourth proportional to 88,679.60, 133,025.80 and 53,543.60 is: 80,319.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,679.60 : 133,025.80 = 53,543.60 : x
  2. Step 2: Convert to fraction form
    88,679.60/133,025.80 = 53,543.60/x
  3. Step 3: Cross multiply
    88,679.60x = 133,025.80 × 53,543.60
  4. Step 4: Simplify right side
    88,679.60x = 7,122,680,224.88
  5. Step 5: Solve for x
    x = 7,122,680,224.88/88,679.60
  6. Step 6: Final answer
    x = 80,319.26

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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.