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Finding the Fourth Proportional to 108,149.88, 162,122.76 and 52,021.76

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Solution

The fourth proportional to 108,149.88, 162,122.76 and 52,021.76 is: 77,983.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,149.88 : 162,122.76 = 52,021.76 : x
  2. Step 2: Convert to fraction form
    108,149.88/162,122.76 = 52,021.76/x
  3. Step 3: Cross multiply
    108,149.88x = 162,122.76 × 52,021.76
  4. Step 4: Simplify right side
    108,149.88x = 8,433,911,311.26
  5. Step 5: Solve for x
    x = 8,433,911,311.26/108,149.88
  6. Step 6: Final answer
    x = 77,983.55

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1.5x scale

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.