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Finding the Fourth Proportional to 108,818.69, 150,184.44 and 61,074.65

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Solution

The fourth proportional to 108,818.69, 150,184.44 and 61,074.65 is: 84,291.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,818.69 : 150,184.44 = 61,074.65 : x
  2. Step 2: Convert to fraction form
    108,818.69/150,184.44 = 61,074.65/x
  3. Step 3: Cross multiply
    108,818.69x = 150,184.44 × 61,074.65
  4. Step 4: Simplify right side
    108,818.69x = 9,172,461,357.52
  5. Step 5: Solve for x
    x = 9,172,461,357.52/108,818.69
  6. Step 6: Final answer
    x = 84,291.24

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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.