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Finding the Fourth Proportional to 109,282.66, 150,810.52 and 61,536.80

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Solution

The fourth proportional to 109,282.66, 150,810.52 and 61,536.80 is: 84,921.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,282.66 : 150,810.52 = 61,536.80 : x
  2. Step 2: Convert to fraction form
    109,282.66/150,810.52 = 61,536.80/x
  3. Step 3: Cross multiply
    109,282.66x = 150,810.52 × 61,536.80
  4. Step 4: Simplify right side
    109,282.66x = 9,280,396,807.14
  5. Step 5: Solve for x
    x = 9,280,396,807.14/109,282.66
  6. Step 6: Final answer
    x = 84,921.04

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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.