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Finding the Fourth Proportional to 122,327.10, 168,821.60 and 67,884.40

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Solution

The fourth proportional to 122,327.10, 168,821.60 and 67,884.40 is: 93,686.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,327.10 : 168,821.60 = 67,884.40 : x
  2. Step 2: Convert to fraction form
    122,327.10/168,821.60 = 67,884.40/x
  3. Step 3: Cross multiply
    122,327.10x = 168,821.60 × 67,884.40
  4. Step 4: Simplify right side
    122,327.10x = 11,460,353,023.04
  5. Step 5: Solve for x
    x = 11,460,353,023.04/122,327.10
  6. Step 6: Final answer
    x = 93,686.13

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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.