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Finding the Fourth Proportional to 124,564, 171,901.96 and 67,979.04

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Solution

The fourth proportional to 124,564, 171,901.96 and 67,979.04 is: 93,813.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,564 : 171,901.96 = 67,979.04 : x
  2. Step 2: Convert to fraction form
    124,564/171,901.96 = 67,979.04/x
  3. Step 3: Cross multiply
    124,564x = 171,901.96 × 67,979.04
  4. Step 4: Simplify right side
    124,564x = 11,685,730,214.92
  5. Step 5: Solve for x
    x = 11,685,730,214.92/124,564
  6. Step 6: Final answer
    x = 93,813.06

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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.