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Finding the Fourth Proportional to 122,354.76, 168,839.64 and 68,632.32

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Solution

The fourth proportional to 122,354.76, 168,839.64 and 68,632.32 is: 94,707.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,354.76 : 168,839.64 = 68,632.32 : x
  2. Step 2: Convert to fraction form
    122,354.76/168,839.64 = 68,632.32/x
  3. Step 3: Cross multiply
    122,354.76x = 168,839.64 × 68,632.32
  4. Step 4: Simplify right side
    122,354.76x = 11,587,856,201.16
  5. Step 5: Solve for x
    x = 11,587,856,201.16/122,354.76
  6. Step 6: Final answer
    x = 94,707.03

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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.