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Finding the Fourth Proportional to 78,870, 118,287.30 and 22,697.58

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Solution

The fourth proportional to 78,870, 118,287.30 and 22,697.58 is: 34,041.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,870 : 118,287.30 = 22,697.58 : x
  2. Step 2: Convert to fraction form
    78,870/118,287.30 = 22,697.58/x
  3. Step 3: Cross multiply
    78,870x = 118,287.30 × 22,697.58
  4. Step 4: Simplify right side
    78,870x = 2,684,835,454.73
  5. Step 5: Solve for x
    x = 2,684,835,454.73/78,870
  6. Step 6: Final answer
    x = 34,041.28

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.