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Finding the Fourth Proportional to 98,793.15, 136,333.17 and 56,352.39

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Solution

The fourth proportional to 98,793.15, 136,333.17 and 56,352.39 is: 77,765.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,793.15 : 136,333.17 = 56,352.39 : x
  2. Step 2: Convert to fraction form
    98,793.15/136,333.17 = 56,352.39/x
  3. Step 3: Cross multiply
    98,793.15x = 136,333.17 × 56,352.39
  4. Step 4: Simplify right side
    98,793.15x = 7,682,699,965.78
  5. Step 5: Solve for x
    x = 7,682,699,965.78/98,793.15
  6. Step 6: Final answer
    x = 77,765.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.