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Finding the Fourth Proportional to 158,662.65, 237,990.06 and 38,720.46

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Solution

The fourth proportional to 158,662.65, 237,990.06 and 38,720.46 is: 58,079.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,662.65 : 237,990.06 = 38,720.46 : x
  2. Step 2: Convert to fraction form
    158,662.65/237,990.06 = 38,720.46/x
  3. Step 3: Cross multiply
    158,662.65x = 237,990.06 × 38,720.46
  4. Step 4: Simplify right side
    158,662.65x = 9,215,084,598.63
  5. Step 5: Solve for x
    x = 9,215,084,598.63/158,662.65
  6. Step 6: Final answer
    x = 58,079.73

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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.