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Finding the Fourth Proportional to 245,983.20, 369,061.20 and 88,216.80

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Solution

The fourth proportional to 245,983.20, 369,061.20 and 88,216.80 is: 132,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,983.20 : 369,061.20 = 88,216.80 : x
  2. Step 2: Convert to fraction form
    245,983.20/369,061.20 = 88,216.80/x
  3. Step 3: Cross multiply
    245,983.20x = 369,061.20 × 88,216.80
  4. Step 4: Simplify right side
    245,983.20x = 32,557,398,068.16
  5. Step 5: Solve for x
    x = 32,557,398,068.16/245,983.20
  6. Step 6: Final answer
    x = 132,356.19

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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.