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Finding the Fourth Proportional to 71,948.40, 107,922.60 and 22,700.40

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Solution

The fourth proportional to 71,948.40, 107,922.60 and 22,700.40 is: 34,050.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,948.40 : 107,922.60 = 22,700.40 : x
  2. Step 2: Convert to fraction form
    71,948.40/107,922.60 = 22,700.40/x
  3. Step 3: Cross multiply
    71,948.40x = 107,922.60 × 22,700.40
  4. Step 4: Simplify right side
    71,948.40x = 2,449,886,189.04
  5. Step 5: Solve for x
    x = 2,449,886,189.04/71,948.40
  6. Step 6: Final answer
    x = 34,050.60

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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.