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Finding the Fourth Proportional to 123,875.73, 170,951.67 and 70,159.95

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Solution

The fourth proportional to 123,875.73, 170,951.67 and 70,159.95 is: 96,822.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,875.73 : 170,951.67 = 70,159.95 : x
  2. Step 2: Convert to fraction form
    123,875.73/170,951.67 = 70,159.95/x
  3. Step 3: Cross multiply
    123,875.73x = 170,951.67 × 70,159.95
  4. Step 4: Simplify right side
    123,875.73x = 11,993,960,619.62
  5. Step 5: Solve for x
    x = 11,993,960,619.62/123,875.73
  6. Step 6: Final answer
    x = 96,822.52

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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.