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Finding the Fourth Proportional to 122,254.97, 168,711.74 and 68,540.00

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Solution

The fourth proportional to 122,254.97, 168,711.74 and 68,540.00 is: 94,585.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,254.97 : 168,711.74 = 68,540.00 : x
  2. Step 2: Convert to fraction form
    122,254.97/168,711.74 = 68,540.00/x
  3. Step 3: Cross multiply
    122,254.97x = 168,711.74 × 68,540.00
  4. Step 4: Simplify right side
    122,254.97x = 11,563,501,473.34
  5. Step 5: Solve for x
    x = 11,563,501,473.34/122,254.97
  6. Step 6: Final answer
    x = 94,585.13

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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.