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Finding the Fourth Proportional to 70,042.15, 104,383.87 and 67,800.61

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Solution

The fourth proportional to 70,042.15, 104,383.87 and 67,800.61 is: 101,043.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,042.15 : 104,383.87 = 67,800.61 : x
  2. Step 2: Convert to fraction form
    70,042.15/104,383.87 = 67,800.61/x
  3. Step 3: Cross multiply
    70,042.15x = 104,383.87 × 67,800.61
  4. Step 4: Simplify right side
    70,042.15x = 7,077,290,060.16
  5. Step 5: Solve for x
    x = 7,077,290,060.16/70,042.15
  6. Step 6: Final answer
    x = 101,043.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.