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Finding the Fourth Proportional to 71,568.55, 100,064.75 and 71,568.55

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Solution

The fourth proportional to 71,568.55, 100,064.75 and 71,568.55 is: 100,064.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,568.55 : 100,064.75 = 71,568.55 : x
  2. Step 2: Convert to fraction form
    71,568.55/100,064.75 = 71,568.55/x
  3. Step 3: Cross multiply
    71,568.55x = 100,064.75 × 71,568.55
  4. Step 4: Simplify right side
    71,568.55x = 7,161,489,063.61
  5. Step 5: Solve for x
    x = 7,161,489,063.61/71,568.55
  6. Step 6: Final answer
    x = 100,064.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.