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Finding the Fourth Proportional to 180,042.75, 248,459.40 and 108,425.79

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Solution

The fourth proportional to 180,042.75, 248,459.40 and 108,425.79 is: 149,627.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,042.75 : 248,459.40 = 108,425.79 : x
  2. Step 2: Convert to fraction form
    180,042.75/248,459.40 = 108,425.79/x
  3. Step 3: Cross multiply
    180,042.75x = 248,459.40 × 108,425.79
  4. Step 4: Simplify right side
    180,042.75x = 26,939,406,727.93
  5. Step 5: Solve for x
    x = 26,939,406,727.93/180,042.75
  6. Step 6: Final answer
    x = 149,627.83

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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.