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Finding the Fourth Proportional to 159,085.80, 238,623.20 and 40,758.30

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Solution

The fourth proportional to 159,085.80, 238,623.20 and 40,758.30 is: 61,136.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,085.80 : 238,623.20 = 40,758.30 : x
  2. Step 2: Convert to fraction form
    159,085.80/238,623.20 = 40,758.30/x
  3. Step 3: Cross multiply
    159,085.80x = 238,623.20 × 40,758.30
  4. Step 4: Simplify right side
    159,085.80x = 9,725,875,972.56
  5. Step 5: Solve for x
    x = 9,725,875,972.56/159,085.80
  6. Step 6: Final answer
    x = 61,136.04

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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.