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Finding the Fourth Proportional to 147,201.20, 220,830.60 and 62,961.20

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Solution

The fourth proportional to 147,201.20, 220,830.60 and 62,961.20 is: 94,454.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,201.20 : 220,830.60 = 62,961.20 : x
  2. Step 2: Convert to fraction form
    147,201.20/220,830.60 = 62,961.20/x
  3. Step 3: Cross multiply
    147,201.20x = 220,830.60 × 62,961.20
  4. Step 4: Simplify right side
    147,201.20x = 13,903,759,572.72
  5. Step 5: Solve for x
    x = 13,903,759,572.72/147,201.20
  6. Step 6: Final answer
    x = 94,454.12

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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.