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Finding the Fourth Proportional to 98,820.97, 136,372.77 and 53,498.94

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Solution

The fourth proportional to 98,820.97, 136,372.77 and 53,498.94 is: 73,828.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,820.97 : 136,372.77 = 53,498.94 : x
  2. Step 2: Convert to fraction form
    98,820.97/136,372.77 = 53,498.94/x
  3. Step 3: Cross multiply
    98,820.97x = 136,372.77 × 53,498.94
  4. Step 4: Simplify right side
    98,820.97x = 7,295,797,958.00
  5. Step 5: Solve for x
    x = 7,295,797,958.00/98,820.97
  6. Step 6: Final answer
    x = 73,828.44

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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.