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Finding the Fourth Proportional to 71,846.64, 99,121.56 and 71,735.88

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Solution

The fourth proportional to 71,846.64, 99,121.56 and 71,735.88 is: 98,968.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,846.64 : 99,121.56 = 71,735.88 : x
  2. Step 2: Convert to fraction form
    71,846.64/99,121.56 = 71,735.88/x
  3. Step 3: Cross multiply
    71,846.64x = 99,121.56 × 71,735.88
  4. Step 4: Simplify right side
    71,846.64x = 7,110,572,333.57
  5. Step 5: Solve for x
    x = 7,110,572,333.57/71,846.64
  6. Step 6: Final answer
    x = 98,968.75

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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.