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Finding the Fourth Proportional to 78,873.09, 118,310.64 and 22,714.10

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Solution

The fourth proportional to 78,873.09, 118,310.64 and 22,714.10 is: 34,071.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,873.09 : 118,310.64 = 22,714.10 : x
  2. Step 2: Convert to fraction form
    78,873.09/118,310.64 = 22,714.10/x
  3. Step 3: Cross multiply
    78,873.09x = 118,310.64 × 22,714.10
  4. Step 4: Simplify right side
    78,873.09x = 2,687,319,708.02
  5. Step 5: Solve for x
    x = 2,687,319,708.02/78,873.09
  6. Step 6: Final answer
    x = 34,071.44

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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.