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Finding the Fourth Proportional to 91,959.03, 126,855.82 and 61,752.92

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Solution

The fourth proportional to 91,959.03, 126,855.82 and 61,752.92 is: 85,187.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,959.03 : 126,855.82 = 61,752.92 : x
  2. Step 2: Convert to fraction form
    91,959.03/126,855.82 = 61,752.92/x
  3. Step 3: Cross multiply
    91,959.03x = 126,855.82 × 61,752.92
  4. Step 4: Simplify right side
    91,959.03x = 7,833,716,746.91
  5. Step 5: Solve for x
    x = 7,833,716,746.91/91,959.03
  6. Step 6: Final answer
    x = 85,187.03

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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.