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Finding the Fourth Proportional to 75,803.61, 104,618.67 and 63,034.83

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Solution

The fourth proportional to 75,803.61, 104,618.67 and 63,034.83 is: 86,996.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,803.61 : 104,618.67 = 63,034.83 : x
  2. Step 2: Convert to fraction form
    75,803.61/104,618.67 = 63,034.83/x
  3. Step 3: Cross multiply
    75,803.61x = 104,618.67 × 63,034.83
  4. Step 4: Simplify right side
    75,803.61x = 6,594,620,078.28
  5. Step 5: Solve for x
    x = 6,594,620,078.28/75,803.61
  6. Step 6: Final answer
    x = 86,996.12

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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.