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Finding the Fourth Proportional to 247,347.76, 340,961.16 and 151,677.04

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Solution

The fourth proportional to 247,347.76, 340,961.16 and 151,677.04 is: 209,082.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,347.76 : 340,961.16 = 151,677.04 : x
  2. Step 2: Convert to fraction form
    247,347.76/340,961.16 = 151,677.04/x
  3. Step 3: Cross multiply
    247,347.76x = 340,961.16 × 151,677.04
  4. Step 4: Simplify right side
    247,347.76x = 51,715,979,503.77
  5. Step 5: Solve for x
    x = 51,715,979,503.77/247,347.76
  6. Step 6: Final answer
    x = 209,082.06

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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.