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Finding the Fourth Proportional to 63,959.74, 95,972.01 and 43,139.50

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Solution

The fourth proportional to 63,959.74, 95,972.01 and 43,139.50 is: 64,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,959.74 : 95,972.01 = 43,139.50 : x
  2. Step 2: Convert to fraction form
    63,959.74/95,972.01 = 43,139.50/x
  3. Step 3: Cross multiply
    63,959.74x = 95,972.01 × 43,139.50
  4. Step 4: Simplify right side
    63,959.74x = 4,140,184,525.40
  5. Step 5: Solve for x
    x = 4,140,184,525.40/63,959.74
  6. Step 6: Final answer
    x = 64,731.10

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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.