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Finding the Fourth Proportional to 111,700.46, 154,182.58 and 71,522.48

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Solution

The fourth proportional to 111,700.46, 154,182.58 and 71,522.48 is: 98,724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,700.46 : 154,182.58 = 71,522.48 : x
  2. Step 2: Convert to fraction form
    111,700.46/154,182.58 = 71,522.48/x
  3. Step 3: Cross multiply
    111,700.46x = 154,182.58 × 71,522.48
  4. Step 4: Simplify right side
    111,700.46x = 11,027,520,494.40
  5. Step 5: Solve for x
    x = 11,027,520,494.40/111,700.46
  6. Step 6: Final answer
    x = 98,724.04

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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.