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Finding the Fourth Proportional to 98,193.50, 135,507.13 and 55,752.03

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Solution

The fourth proportional to 98,193.50, 135,507.13 and 55,752.03 is: 76,937.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,193.50 : 135,507.13 = 55,752.03 : x
  2. Step 2: Convert to fraction form
    98,193.50/135,507.13 = 55,752.03/x
  3. Step 3: Cross multiply
    98,193.50x = 135,507.13 × 55,752.03
  4. Step 4: Simplify right side
    98,193.50x = 7,554,797,945.75
  5. Step 5: Solve for x
    x = 7,554,797,945.75/98,193.50
  6. Step 6: Final answer
    x = 76,937.86

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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.