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Finding the Fourth Proportional to 244,637.90, 366,956.85 and 78,442.70

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Solution

The fourth proportional to 244,637.90, 366,956.85 and 78,442.70 is: 117,664.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,637.90 : 366,956.85 = 78,442.70 : x
  2. Step 2: Convert to fraction form
    244,637.90/366,956.85 = 78,442.70/x
  3. Step 3: Cross multiply
    244,637.90x = 366,956.85 × 78,442.70
  4. Step 4: Simplify right side
    244,637.90x = 28,785,086,097.50
  5. Step 5: Solve for x
    x = 28,785,086,097.50/244,637.90
  6. Step 6: Final answer
    x = 117,664.05

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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.