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Finding the Fourth Proportional to 147,195.20, 220,821.60 and 62,955.20

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Solution

The fourth proportional to 147,195.20, 220,821.60 and 62,955.20 is: 94,445.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,195.20 : 220,821.60 = 62,955.20 : x
  2. Step 2: Convert to fraction form
    147,195.20/220,821.60 = 62,955.20/x
  3. Step 3: Cross multiply
    147,195.20x = 220,821.60 × 62,955.20
  4. Step 4: Simplify right side
    147,195.20x = 13,901,867,992.32
  5. Step 5: Solve for x
    x = 13,901,867,992.32/147,195.20
  6. Step 6: Final answer
    x = 94,445.12

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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.