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Finding the Fourth Proportional to 122,587.60, 183,881.40 and 47,711.20

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Solution

The fourth proportional to 122,587.60, 183,881.40 and 47,711.20 is: 71,566.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,587.60 : 183,881.40 = 47,711.20 : x
  2. Step 2: Convert to fraction form
    122,587.60/183,881.40 = 47,711.20/x
  3. Step 3: Cross multiply
    122,587.60x = 183,881.40 × 47,711.20
  4. Step 4: Simplify right side
    122,587.60x = 8,773,202,251.68
  5. Step 5: Solve for x
    x = 8,773,202,251.68/122,587.60
  6. Step 6: Final answer
    x = 71,566.80

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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.