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Finding the Fourth Proportional to 140,536.76, 210,835.92 and 40,701.02

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Solution

The fourth proportional to 140,536.76, 210,835.92 and 40,701.02 is: 61,060.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,536.76 : 210,835.92 = 40,701.02 : x
  2. Step 2: Convert to fraction form
    140,536.76/210,835.92 = 40,701.02/x
  3. Step 3: Cross multiply
    140,536.76x = 210,835.92 × 40,701.02
  4. Step 4: Simplify right side
    140,536.76x = 8,581,236,996.64
  5. Step 5: Solve for x
    x = 8,581,236,996.64/140,536.76
  6. Step 6: Final answer
    x = 61,060.44

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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.