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Finding the Fourth Proportional to 79,053.90, 118,601.10 and 45,714.30

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Solution

The fourth proportional to 79,053.90, 118,601.10 and 45,714.30 is: 68,583.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,053.90 : 118,601.10 = 45,714.30 : x
  2. Step 2: Convert to fraction form
    79,053.90/118,601.10 = 45,714.30/x
  3. Step 3: Cross multiply
    79,053.90x = 118,601.10 × 45,714.30
  4. Step 4: Simplify right side
    79,053.90x = 5,421,766,265.73
  5. Step 5: Solve for x
    x = 5,421,766,265.73/79,053.90
  6. Step 6: Final answer
    x = 68,583.16

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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.