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Finding the Fourth Proportional to 98,625.38, 136,100.49 and 53,910.50

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Solution

The fourth proportional to 98,625.38, 136,100.49 and 53,910.50 is: 74,395.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,625.38 : 136,100.49 = 53,910.50 : x
  2. Step 2: Convert to fraction form
    98,625.38/136,100.49 = 53,910.50/x
  3. Step 3: Cross multiply
    98,625.38x = 136,100.49 × 53,910.50
  4. Step 4: Simplify right side
    98,625.38x = 7,337,245,466.15
  5. Step 5: Solve for x
    x = 7,337,245,466.15/98,625.38
  6. Step 6: Final answer
    x = 74,395.10

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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.