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Finding the Fourth Proportional to 122,222.52, 168,666.50 and 68,507.52

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Solution

The fourth proportional to 122,222.52, 168,666.50 and 68,507.52 is: 94,540.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,222.52 : 168,666.50 = 68,507.52 : x
  2. Step 2: Convert to fraction form
    122,222.52/168,666.50 = 68,507.52/x
  3. Step 3: Cross multiply
    122,222.52x = 168,666.50 × 68,507.52
  4. Step 4: Simplify right side
    122,222.52x = 11,554,923,279.54
  5. Step 5: Solve for x
    x = 11,554,923,279.54/122,222.52
  6. Step 6: Final answer
    x = 94,540.05

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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.