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Finding the Fourth Proportional to 140,700.65, 211,061.96 and 40,862.48

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Solution

The fourth proportional to 140,700.65, 211,061.96 and 40,862.48 is: 61,296.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,700.65 : 211,061.96 = 40,862.48 : x
  2. Step 2: Convert to fraction form
    140,700.65/211,061.96 = 40,862.48/x
  3. Step 3: Cross multiply
    140,700.65x = 211,061.96 × 40,862.48
  4. Step 4: Simplify right side
    140,700.65x = 8,624,514,914.95
  5. Step 5: Solve for x
    x = 8,624,514,914.95/140,700.65
  6. Step 6: Final answer
    x = 61,296.91

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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.