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Finding the Fourth Proportional to 168,920.12, 233,072.74 and 100,926.88

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Solution

The fourth proportional to 168,920.12, 233,072.74 and 100,926.88 is: 139,256.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,920.12 : 233,072.74 = 100,926.88 : x
  2. Step 2: Convert to fraction form
    168,920.12/233,072.74 = 100,926.88/x
  3. Step 3: Cross multiply
    168,920.12x = 233,072.74 × 100,926.88
  4. Step 4: Simplify right side
    168,920.12x = 23,523,304,461.25
  5. Step 5: Solve for x
    x = 23,523,304,461.25/168,920.12
  6. Step 6: Final answer
    x = 139,256.97

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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.