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Finding the Fourth Proportional to 123,043.48, 169,815.66 and 69,341.69

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Solution

The fourth proportional to 123,043.48, 169,815.66 and 69,341.69 is: 95,700.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,043.48 : 169,815.66 = 69,341.69 : x
  2. Step 2: Convert to fraction form
    123,043.48/169,815.66 = 69,341.69/x
  3. Step 3: Cross multiply
    123,043.48x = 169,815.66 × 69,341.69
  4. Step 4: Simplify right side
    123,043.48x = 11,775,305,017.37
  5. Step 5: Solve for x
    x = 11,775,305,017.37/123,043.48
  6. Step 6: Final answer
    x = 95,700.36

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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.