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Finding the Fourth Proportional to 276,066.10, 414,342.15 and 163,605.70

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Solution

The fourth proportional to 276,066.10, 414,342.15 and 163,605.70 is: 245,552.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,066.10 : 414,342.15 = 163,605.70 : x
  2. Step 2: Convert to fraction form
    276,066.10/414,342.15 = 163,605.70/x
  3. Step 3: Cross multiply
    276,066.10x = 414,342.15 × 163,605.70
  4. Step 4: Simplify right side
    276,066.10x = 67,788,737,490.26
  5. Step 5: Solve for x
    x = 67,788,737,490.26/276,066.10
  6. Step 6: Final answer
    x = 245,552.56

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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.