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Finding the Fourth Proportional to 75,399.60, 104,061.60 and 43,569.84

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Solution

The fourth proportional to 75,399.60, 104,061.60 and 43,569.84 is: 60,132.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,399.60 : 104,061.60 = 43,569.84 : x
  2. Step 2: Convert to fraction form
    75,399.60/104,061.60 = 43,569.84/x
  3. Step 3: Cross multiply
    75,399.60x = 104,061.60 × 43,569.84
  4. Step 4: Simplify right side
    75,399.60x = 4,533,947,262.14
  5. Step 5: Solve for x
    x = 4,533,947,262.14/75,399.60
  6. Step 6: Final answer
    x = 60,132.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.