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Finding the Fourth Proportional to 108,092.80, 162,139.74 and 48,859.12

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Solution

The fourth proportional to 108,092.80, 162,139.74 and 48,859.12 is: 73,288.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,092.80 : 162,139.74 = 48,859.12 : x
  2. Step 2: Convert to fraction form
    108,092.80/162,139.74 = 48,859.12/x
  3. Step 3: Cross multiply
    108,092.80x = 162,139.74 × 48,859.12
  4. Step 4: Simplify right side
    108,092.80x = 7,922,005,013.43
  5. Step 5: Solve for x
    x = 7,922,005,013.43/108,092.80
  6. Step 6: Final answer
    x = 73,288.92

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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.