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Finding the Fourth Proportional to 64,116.60, 88,423.38 and 53,396.88

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Solution

The fourth proportional to 64,116.60, 88,423.38 and 53,396.88 is: 73,639.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,116.60 : 88,423.38 = 53,396.88 : x
  2. Step 2: Convert to fraction form
    64,116.60/88,423.38 = 53,396.88/x
  3. Step 3: Cross multiply
    64,116.60x = 88,423.38 × 53,396.88
  4. Step 4: Simplify right side
    64,116.60x = 4,721,532,611.05
  5. Step 5: Solve for x
    x = 4,721,532,611.05/64,116.60
  6. Step 6: Final answer
    x = 73,639.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.