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Finding the Fourth Proportional to 247,294.22, 370,968.60 and 78,775.34

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Solution

The fourth proportional to 247,294.22, 370,968.60 and 78,775.34 is: 118,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,294.22 : 370,968.60 = 78,775.34 : x
  2. Step 2: Convert to fraction form
    247,294.22/370,968.60 = 78,775.34/x
  3. Step 3: Cross multiply
    247,294.22x = 370,968.60 × 78,775.34
  4. Step 4: Simplify right side
    247,294.22x = 29,223,177,594.32
  5. Step 5: Solve for x
    x = 29,223,177,594.32/247,294.22
  6. Step 6: Final answer
    x = 118,171.70

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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.