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Finding the Fourth Proportional to 124,268.16, 171,492 and 67,679.48

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Solution

The fourth proportional to 124,268.16, 171,492 and 67,679.48 is: 93,398.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,268.16 : 171,492 = 67,679.48 : x
  2. Step 2: Convert to fraction form
    124,268.16/171,492 = 67,679.48/x
  3. Step 3: Cross multiply
    124,268.16x = 171,492 × 67,679.48
  4. Step 4: Simplify right side
    124,268.16x = 11,606,489,384.16
  5. Step 5: Solve for x
    x = 11,606,489,384.16/124,268.16
  6. Step 6: Final answer
    x = 93,398.74

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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.