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Finding the Fourth Proportional to 71,860.83, 98,449.80 and 69,167.30

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Solution

The fourth proportional to 71,860.83, 98,449.80 and 69,167.30 is: 94,759.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,860.83 : 98,449.80 = 69,167.30 : x
  2. Step 2: Convert to fraction form
    71,860.83/98,449.80 = 69,167.30/x
  3. Step 3: Cross multiply
    71,860.83x = 98,449.80 × 69,167.30
  4. Step 4: Simplify right side
    71,860.83x = 6,809,506,359.29
  5. Step 5: Solve for x
    x = 6,809,506,359.29/71,860.83
  6. Step 6: Final answer
    x = 94,759.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.