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Finding the Fourth Proportional to 247,220.40, 370,830.60 and 60,231.90

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Solution

The fourth proportional to 247,220.40, 370,830.60 and 60,231.90 is: 90,347.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,220.40 : 370,830.60 = 60,231.90 : x
  2. Step 2: Convert to fraction form
    247,220.40/370,830.60 = 60,231.90/x
  3. Step 3: Cross multiply
    247,220.40x = 370,830.60 × 60,231.90
  4. Step 4: Simplify right side
    247,220.40x = 22,335,831,616.14
  5. Step 5: Solve for x
    x = 22,335,831,616.14/247,220.40
  6. Step 6: Final answer
    x = 90,347.85

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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.