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Finding the Fourth Proportional to 98,924.40, 148,389.84 and 28,797.84

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Solution

The fourth proportional to 98,924.40, 148,389.84 and 28,797.84 is: 43,197.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,924.40 : 148,389.84 = 28,797.84 : x
  2. Step 2: Convert to fraction form
    98,924.40/148,389.84 = 28,797.84/x
  3. Step 3: Cross multiply
    98,924.40x = 148,389.84 × 28,797.84
  4. Step 4: Simplify right side
    98,924.40x = 4,273,306,869.95
  5. Step 5: Solve for x
    x = 4,273,306,869.95/98,924.40
  6. Step 6: Final answer
    x = 43,197.70

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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.