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Finding the Fourth Proportional to 207,553.95, 311,374.68 and 67,301.64

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Solution

The fourth proportional to 207,553.95, 311,374.68 and 67,301.64 is: 100,966.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,553.95 : 311,374.68 = 67,301.64 : x
  2. Step 2: Convert to fraction form
    207,553.95/311,374.68 = 67,301.64/x
  3. Step 3: Cross multiply
    207,553.95x = 311,374.68 × 67,301.64
  4. Step 4: Simplify right side
    207,553.95x = 20,956,026,618.48
  5. Step 5: Solve for x
    x = 20,956,026,618.48/207,553.95
  6. Step 6: Final answer
    x = 100,966.65

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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.