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Finding the Fourth Proportional to 160,411.20, 240,616.80 and 98,203.20

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Solution

The fourth proportional to 160,411.20, 240,616.80 and 98,203.20 is: 147,304.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,411.20 : 240,616.80 = 98,203.20 : x
  2. Step 2: Convert to fraction form
    160,411.20/240,616.80 = 98,203.20/x
  3. Step 3: Cross multiply
    160,411.20x = 240,616.80 × 98,203.20
  4. Step 4: Simplify right side
    160,411.20x = 23,629,339,733.76
  5. Step 5: Solve for x
    x = 23,629,339,733.76/160,411.20
  6. Step 6: Final answer
    x = 147,304.80

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1.5x scale

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.