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Finding the Fourth Proportional to 159,300.60, 238,950.87 and 65,808.78

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Solution

The fourth proportional to 159,300.60, 238,950.87 and 65,808.78 is: 98,713.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,300.60 : 238,950.87 = 65,808.78 : x
  2. Step 2: Convert to fraction form
    159,300.60/238,950.87 = 65,808.78/x
  3. Step 3: Cross multiply
    159,300.60x = 238,950.87 × 65,808.78
  4. Step 4: Simplify right side
    159,300.60x = 15,725,065,234.64
  5. Step 5: Solve for x
    x = 15,725,065,234.64/159,300.60
  6. Step 6: Final answer
    x = 98,713.16

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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.