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Finding the Fourth Proportional to 108,866.44, 150,238.02 and 61,121.08

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Solution

The fourth proportional to 108,866.44, 150,238.02 and 61,121.08 is: 84,348.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,866.44 : 150,238.02 = 61,121.08 : x
  2. Step 2: Convert to fraction form
    108,866.44/150,238.02 = 61,121.08/x
  3. Step 3: Cross multiply
    108,866.44x = 150,238.02 × 61,121.08
  4. Step 4: Simplify right side
    108,866.44x = 9,182,710,039.46
  5. Step 5: Solve for x
    x = 9,182,710,039.46/108,866.44
  6. Step 6: Final answer
    x = 84,348.40

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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.