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Finding the Fourth Proportional to 75,287.68, 112,840.36 and 41,972.36

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Solution

The fourth proportional to 75,287.68, 112,840.36 and 41,972.36 is: 62,907.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,287.68 : 112,840.36 = 41,972.36 : x
  2. Step 2: Convert to fraction form
    75,287.68/112,840.36 = 41,972.36/x
  3. Step 3: Cross multiply
    75,287.68x = 112,840.36 × 41,972.36
  4. Step 4: Simplify right side
    75,287.68x = 4,736,176,212.45
  5. Step 5: Solve for x
    x = 4,736,176,212.45/75,287.68
  6. Step 6: Final answer
    x = 62,907.72

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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.