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Finding the Fourth Proportional to 64,959.80, 97,439.70 and 41,340.20

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Solution

The fourth proportional to 64,959.80, 97,439.70 and 41,340.20 is: 62,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,959.80 : 97,439.70 = 41,340.20 : x
  2. Step 2: Convert to fraction form
    64,959.80/97,439.70 = 41,340.20/x
  3. Step 3: Cross multiply
    64,959.80x = 97,439.70 × 41,340.20
  4. Step 4: Simplify right side
    64,959.80x = 4,028,176,685.94
  5. Step 5: Solve for x
    x = 4,028,176,685.94/64,959.80
  6. Step 6: Final answer
    x = 62,010.30

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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.