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Finding the Fourth Proportional to 159,291.32, 238,803.06 and 106,539.80

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Solution

The fourth proportional to 159,291.32, 238,803.06 and 106,539.80 is: 159,720.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,291.32 : 238,803.06 = 106,539.80 : x
  2. Step 2: Convert to fraction form
    159,291.32/238,803.06 = 106,539.80/x
  3. Step 3: Cross multiply
    159,291.32x = 238,803.06 × 106,539.80
  4. Step 4: Simplify right side
    159,291.32x = 25,442,030,251.79
  5. Step 5: Solve for x
    x = 25,442,030,251.79/159,291.32
  6. Step 6: Final answer
    x = 159,720.13

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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.