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Finding the Fourth Proportional to 99,313.50, 148,971.62 and 55,026.75

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Solution

The fourth proportional to 99,313.50, 148,971.62 and 55,026.75 is: 82,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,313.50 : 148,971.62 = 55,026.75 : x
  2. Step 2: Convert to fraction form
    99,313.50/148,971.62 = 55,026.75/x
  3. Step 3: Cross multiply
    99,313.50x = 148,971.62 × 55,026.75
  4. Step 4: Simplify right side
    99,313.50x = 8,197,423,815.70
  5. Step 5: Solve for x
    x = 8,197,423,815.70/99,313.50
  6. Step 6: Final answer
    x = 82,540.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.