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Finding the Fourth Proportional to 98,793.90, 148,093.65 and 48,881.70

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Solution

The fourth proportional to 98,793.90, 148,093.65 and 48,881.70 is: 73,274.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,793.90 : 148,093.65 = 48,881.70 : x
  2. Step 2: Convert to fraction form
    98,793.90/148,093.65 = 48,881.70/x
  3. Step 3: Cross multiply
    98,793.90x = 148,093.65 × 48,881.70
  4. Step 4: Simplify right side
    98,793.90x = 7,239,069,371.21
  5. Step 5: Solve for x
    x = 7,239,069,371.21/98,793.90
  6. Step 6: Final answer
    x = 73,274.46

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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.