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Finding the Fourth Proportional to 247,160.32, 370,724.80 and 78,801.44

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Solution

The fourth proportional to 247,160.32, 370,724.80 and 78,801.44 is: 118,197.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,160.32 : 370,724.80 = 78,801.44 : x
  2. Step 2: Convert to fraction form
    247,160.32/370,724.80 = 78,801.44/x
  3. Step 3: Cross multiply
    247,160.32x = 370,724.80 × 78,801.44
  4. Step 4: Simplify right side
    247,160.32x = 29,213,648,083.71
  5. Step 5: Solve for x
    x = 29,213,648,083.71/247,160.32
  6. Step 6: Final answer
    x = 118,197.16

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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.