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Finding the Fourth Proportional to 98,733.90, 148,135.41 and 28,617.42

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Solution

The fourth proportional to 98,733.90, 148,135.41 and 28,617.42 is: 42,936.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,733.90 : 148,135.41 = 28,617.42 : x
  2. Step 2: Convert to fraction form
    98,733.90/148,135.41 = 28,617.42/x
  3. Step 3: Cross multiply
    98,733.90x = 148,135.41 × 28,617.42
  4. Step 4: Simplify right side
    98,733.90x = 4,239,253,244.84
  5. Step 5: Solve for x
    x = 4,239,253,244.84/98,733.90
  6. Step 6: Final answer
    x = 42,936.15

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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.