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Finding the Fourth Proportional to 123,875.84, 170,952.36 and 67,291.04

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Solution

The fourth proportional to 123,875.84, 170,952.36 and 67,291.04 is: 92,863.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,875.84 : 170,952.36 = 67,291.04 : x
  2. Step 2: Convert to fraction form
    123,875.84/170,952.36 = 67,291.04/x
  3. Step 3: Cross multiply
    123,875.84x = 170,952.36 × 67,291.04
  4. Step 4: Simplify right side
    123,875.84x = 11,503,562,094.85
  5. Step 5: Solve for x
    x = 11,503,562,094.85/123,875.84
  6. Step 6: Final answer
    x = 92,863.65

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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.