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Finding the Fourth Proportional to 71,567.15, 100,332.25 and 71,567.15

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Solution

The fourth proportional to 71,567.15, 100,332.25 and 71,567.15 is: 100,332.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,567.15 : 100,332.25 = 71,567.15 : x
  2. Step 2: Convert to fraction form
    71,567.15/100,332.25 = 71,567.15/x
  3. Step 3: Cross multiply
    71,567.15x = 100,332.25 × 71,567.15
  4. Step 4: Simplify right side
    71,567.15x = 7,180,493,185.59
  5. Step 5: Solve for x
    x = 7,180,493,185.59/71,567.15
  6. Step 6: Final answer
    x = 100,332.25

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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.