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Finding the Fourth Proportional to 219,000.92, 328,559.78 and 69,244.02

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Solution

The fourth proportional to 219,000.92, 328,559.78 and 69,244.02 is: 103,884.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,000.92 : 328,559.78 = 69,244.02 : x
  2. Step 2: Convert to fraction form
    219,000.92/328,559.78 = 69,244.02/x
  3. Step 3: Cross multiply
    219,000.92x = 328,559.78 × 69,244.02
  4. Step 4: Simplify right side
    219,000.92x = 22,750,799,977.52
  5. Step 5: Solve for x
    x = 22,750,799,977.52/219,000.92
  6. Step 6: Final answer
    x = 103,884.49

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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.