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Finding the Fourth Proportional to 65,356.80, 98,132.40 and 50,582.40

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Solution

The fourth proportional to 65,356.80, 98,132.40 and 50,582.40 is: 75,948.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,356.80 : 98,132.40 = 50,582.40 : x
  2. Step 2: Convert to fraction form
    65,356.80/98,132.40 = 50,582.40/x
  3. Step 3: Cross multiply
    65,356.80x = 98,132.40 × 50,582.40
  4. Step 4: Simplify right side
    65,356.80x = 4,963,772,309.76
  5. Step 5: Solve for x
    x = 4,963,772,309.76/65,356.80
  6. Step 6: Final answer
    x = 75,948.83

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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.