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Finding the Fourth Proportional to 147,140.56, 220,712.85 and 41,959.51

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Solution

The fourth proportional to 147,140.56, 220,712.85 and 41,959.51 is: 62,939.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,140.56 : 220,712.85 = 41,959.51 : x
  2. Step 2: Convert to fraction form
    147,140.56/220,712.85 = 41,959.51/x
  3. Step 3: Cross multiply
    147,140.56x = 220,712.85 × 41,959.51
  4. Step 4: Simplify right side
    147,140.56x = 9,261,003,036.70
  5. Step 5: Solve for x
    x = 9,261,003,036.70/147,140.56
  6. Step 6: Final answer
    x = 62,939.84

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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.