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Finding the Fourth Proportional to 123,292.68, 170,152.88 and 69,582.39

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Solution

The fourth proportional to 123,292.68, 170,152.88 and 69,582.39 is: 96,028.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,292.68 : 170,152.88 = 69,582.39 : x
  2. Step 2: Convert to fraction form
    123,292.68/170,152.88 = 69,582.39/x
  3. Step 3: Cross multiply
    123,292.68x = 170,152.88 × 69,582.39
  4. Step 4: Simplify right side
    123,292.68x = 11,839,644,055.78
  5. Step 5: Solve for x
    x = 11,839,644,055.78/123,292.68
  6. Step 6: Final answer
    x = 96,028.77

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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.