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Finding the Fourth Proportional to 71,412.32, 98,504.18 and 45,951.80

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Solution

The fourth proportional to 71,412.32, 98,504.18 and 45,951.80 is: 63,384.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,412.32 : 98,504.18 = 45,951.80 : x
  2. Step 2: Convert to fraction form
    71,412.32/98,504.18 = 45,951.80/x
  3. Step 3: Cross multiply
    71,412.32x = 98,504.18 × 45,951.80
  4. Step 4: Simplify right side
    71,412.32x = 4,526,443,656.24
  5. Step 5: Solve for x
    x = 4,526,443,656.24/71,412.32
  6. Step 6: Final answer
    x = 63,384.64

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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.