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Finding the Fourth Proportional to 64,503.32, 96,753.98 and 45,449.18

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Solution

The fourth proportional to 64,503.32, 96,753.98 and 45,449.18 is: 68,173.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,503.32 : 96,753.98 = 45,449.18 : x
  2. Step 2: Convert to fraction form
    64,503.32/96,753.98 = 45,449.18/x
  3. Step 3: Cross multiply
    64,503.32x = 96,753.98 × 45,449.18
  4. Step 4: Simplify right side
    64,503.32x = 4,397,389,052.74
  5. Step 5: Solve for x
    x = 4,397,389,052.74/64,503.32
  6. Step 6: Final answer
    x = 68,173.07

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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.