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Finding the Fourth Proportional to 98,046.35, 135,301.34 and 55,603.97

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Solution

The fourth proportional to 98,046.35, 135,301.34 and 55,603.97 is: 76,731.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,046.35 : 135,301.34 = 55,603.97 : x
  2. Step 2: Convert to fraction form
    98,046.35/135,301.34 = 55,603.97/x
  3. Step 3: Cross multiply
    98,046.35x = 135,301.34 × 55,603.97
  4. Step 4: Simplify right side
    98,046.35x = 7,523,291,307.43
  5. Step 5: Solve for x
    x = 7,523,291,307.43/98,046.35
  6. Step 6: Final answer
    x = 76,731.99

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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.