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Finding the Fourth Proportional to 140,781.60, 211,191.84 and 47,294.64

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Solution

The fourth proportional to 140,781.60, 211,191.84 and 47,294.64 is: 70,948.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,781.60 : 211,191.84 = 47,294.64 : x
  2. Step 2: Convert to fraction form
    140,781.60/211,191.84 = 47,294.64/x
  3. Step 3: Cross multiply
    140,781.60x = 211,191.84 × 47,294.64
  4. Step 4: Simplify right side
    140,781.60x = 9,988,242,043.74
  5. Step 5: Solve for x
    x = 9,988,242,043.74/140,781.60
  6. Step 6: Final answer
    x = 70,948.49

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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.