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Finding the Fourth Proportional to 71,567.65, 100,332.95 and 71,567.65

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Solution

The fourth proportional to 71,567.65, 100,332.95 and 71,567.65 is: 100,332.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,567.65 : 100,332.95 = 71,567.65 : x
  2. Step 2: Convert to fraction form
    71,567.65/100,332.95 = 71,567.65/x
  3. Step 3: Cross multiply
    71,567.65x = 100,332.95 × 71,567.65
  4. Step 4: Simplify right side
    71,567.65x = 7,180,593,449.07
  5. Step 5: Solve for x
    x = 7,180,593,449.07/71,567.65
  6. Step 6: Final answer
    x = 100,332.95

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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.