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Finding the Fourth Proportional to 140,489.88, 210,512.88 and 114,065.52

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Solution

The fourth proportional to 140,489.88, 210,512.88 and 114,065.52 is: 170,918.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,489.88 : 210,512.88 = 114,065.52 : x
  2. Step 2: Convert to fraction form
    140,489.88/210,512.88 = 114,065.52/x
  3. Step 3: Cross multiply
    140,489.88x = 210,512.88 × 114,065.52
  4. Step 4: Simplify right side
    140,489.88x = 24,012,261,123.90
  5. Step 5: Solve for x
    x = 24,012,261,123.90/140,489.88
  6. Step 6: Final answer
    x = 170,918.08

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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.