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Finding the Fourth Proportional to 112,793.66, 155,655.24 and 67,473.54

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Solution

The fourth proportional to 112,793.66, 155,655.24 and 67,473.54 is: 93,113.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,793.66 : 155,655.24 = 67,473.54 : x
  2. Step 2: Convert to fraction form
    112,793.66/155,655.24 = 67,473.54/x
  3. Step 3: Cross multiply
    112,793.66x = 155,655.24 × 67,473.54
  4. Step 4: Simplify right side
    112,793.66x = 10,502,610,062.35
  5. Step 5: Solve for x
    x = 10,502,610,062.35/112,793.66
  6. Step 6: Final answer
    x = 93,113.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.