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Finding the Fourth Proportional to 140,658.34, 210,987.52 and 42,162.34

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Solution

The fourth proportional to 140,658.34, 210,987.52 and 42,162.34 is: 63,243.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,658.34 : 210,987.52 = 42,162.34 : x
  2. Step 2: Convert to fraction form
    140,658.34/210,987.52 = 42,162.34/x
  3. Step 3: Cross multiply
    140,658.34x = 210,987.52 × 42,162.34
  4. Step 4: Simplify right side
    140,658.34x = 8,895,727,554.00
  5. Step 5: Solve for x
    x = 8,895,727,554.00/140,658.34
  6. Step 6: Final answer
    x = 63,243.51

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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.