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Finding the Fourth Proportional to 98,803.20, 148,204.80 and 83,251.20

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Solution

The fourth proportional to 98,803.20, 148,204.80 and 83,251.20 is: 124,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,803.20 : 148,204.80 = 83,251.20 : x
  2. Step 2: Convert to fraction form
    98,803.20/148,204.80 = 83,251.20/x
  3. Step 3: Cross multiply
    98,803.20x = 148,204.80 × 83,251.20
  4. Step 4: Simplify right side
    98,803.20x = 12,338,227,445.76
  5. Step 5: Solve for x
    x = 12,338,227,445.76/98,803.20
  6. Step 6: Final answer
    x = 124,876.80

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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.