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Finding the Fourth Proportional to 163,155.92, 224,735.65 and 115,327.04

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Solution

The fourth proportional to 163,155.92, 224,735.65 and 115,327.04 is: 158,854.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,155.92 : 224,735.65 = 115,327.04 : x
  2. Step 2: Convert to fraction form
    163,155.92/224,735.65 = 115,327.04/x
  3. Step 3: Cross multiply
    163,155.92x = 224,735.65 × 115,327.04
  4. Step 4: Simplify right side
    163,155.92x = 25,918,095,884.98
  5. Step 5: Solve for x
    x = 25,918,095,884.98/163,155.92
  6. Step 6: Final answer
    x = 158,854.77

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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.