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Finding the Fourth Proportional to 140,652.60, 211,080.54 and 55,276.16

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Solution

The fourth proportional to 140,652.60, 211,080.54 and 55,276.16 is: 82,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,652.60 : 211,080.54 = 55,276.16 : x
  2. Step 2: Convert to fraction form
    140,652.60/211,080.54 = 55,276.16/x
  3. Step 3: Cross multiply
    140,652.60x = 211,080.54 × 55,276.16
  4. Step 4: Simplify right side
    140,652.60x = 11,667,721,701.93
  5. Step 5: Solve for x
    x = 11,667,721,701.93/140,652.60
  6. Step 6: Final answer
    x = 82,954.18

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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.