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Finding the Fourth Proportional to 70,568.80, 105,882.80 and 43,937.08

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Solution

The fourth proportional to 70,568.80, 105,882.80 and 43,937.08 is: 65,924.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,568.80 : 105,882.80 = 43,937.08 : x
  2. Step 2: Convert to fraction form
    70,568.80/105,882.80 = 43,937.08/x
  3. Step 3: Cross multiply
    70,568.80x = 105,882.80 × 43,937.08
  4. Step 4: Simplify right side
    70,568.80x = 4,652,180,569.83
  5. Step 5: Solve for x
    x = 4,652,180,569.83/70,568.80
  6. Step 6: Final answer
    x = 65,924.04

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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.