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Finding the Fourth Proportional to 98,984.68, 148,490.36 and 28,863.36

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Solution

The fourth proportional to 98,984.68, 148,490.36 and 28,863.36 is: 43,298.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,984.68 : 148,490.36 = 28,863.36 : x
  2. Step 2: Convert to fraction form
    98,984.68/148,490.36 = 28,863.36/x
  3. Step 3: Cross multiply
    98,984.68x = 148,490.36 × 28,863.36
  4. Step 4: Simplify right side
    98,984.68x = 4,285,930,717.21
  5. Step 5: Solve for x
    x = 4,285,930,717.21/98,984.68
  6. Step 6: Final answer
    x = 43,298.93

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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.