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Finding the Fourth Proportional to 70,041.15, 104,382.38 and 67,799.61

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Solution

The fourth proportional to 70,041.15, 104,382.38 and 67,799.61 is: 101,041.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,041.15 : 104,382.38 = 67,799.61 : x
  2. Step 2: Convert to fraction form
    70,041.15/104,382.38 = 67,799.61/x
  3. Step 3: Cross multiply
    70,041.15x = 104,382.38 × 67,799.61
  4. Step 4: Simplify right side
    70,041.15x = 7,077,084,315.87
  5. Step 5: Solve for x
    x = 7,077,084,315.87/70,041.15
  6. Step 6: Final answer
    x = 101,041.81

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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.