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Finding the Fourth Proportional to 64,468.27, 96,685.30 and 45,692.88

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Solution

The fourth proportional to 64,468.27, 96,685.30 and 45,692.88 is: 68,527.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,468.27 : 96,685.30 = 45,692.88 : x
  2. Step 2: Convert to fraction form
    64,468.27/96,685.30 = 45,692.88/x
  3. Step 3: Cross multiply
    64,468.27x = 96,685.30 × 45,692.88
  4. Step 4: Simplify right side
    64,468.27x = 4,417,829,810.66
  5. Step 5: Solve for x
    x = 4,417,829,810.66/64,468.27
  6. Step 6: Final answer
    x = 68,527.20

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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.