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Finding the Fourth Proportional to 84,894.96, 117,154.20 and 47,168.40

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Solution

The fourth proportional to 84,894.96, 117,154.20 and 47,168.40 is: 65,091.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,894.96 : 117,154.20 = 47,168.40 : x
  2. Step 2: Convert to fraction form
    84,894.96/117,154.20 = 47,168.40/x
  3. Step 3: Cross multiply
    84,894.96x = 117,154.20 × 47,168.40
  4. Step 4: Simplify right side
    84,894.96x = 5,525,976,167.28
  5. Step 5: Solve for x
    x = 5,525,976,167.28/84,894.96
  6. Step 6: Final answer
    x = 65,091.92

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1.5x scale

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.