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Finding the Fourth Proportional to 73,043.97, 100,805.39 and 41,212.18

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Solution

The fourth proportional to 73,043.97, 100,805.39 and 41,212.18 is: 56,875.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,043.97 : 100,805.39 = 41,212.18 : x
  2. Step 2: Convert to fraction form
    73,043.97/100,805.39 = 41,212.18/x
  3. Step 3: Cross multiply
    73,043.97x = 100,805.39 × 41,212.18
  4. Step 4: Simplify right side
    73,043.97x = 4,154,409,877.65
  5. Step 5: Solve for x
    x = 4,154,409,877.65/73,043.97
  6. Step 6: Final answer
    x = 56,875.47

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1.5x scale

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.