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Finding the Fourth Proportional to 207,595.20, 310,736.70 and 148,546.20

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Solution

The fourth proportional to 207,595.20, 310,736.70 and 148,546.20 is: 222,349.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,595.20 : 310,736.70 = 148,546.20 : x
  2. Step 2: Convert to fraction form
    207,595.20/310,736.70 = 148,546.20/x
  3. Step 3: Cross multiply
    207,595.20x = 310,736.70 × 148,546.20
  4. Step 4: Simplify right side
    207,595.20x = 46,158,755,985.54
  5. Step 5: Solve for x
    x = 46,158,755,985.54/207,595.20
  6. Step 6: Final answer
    x = 222,349.82

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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.