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Finding the Fourth Proportional to 127,882.44, 176,421.78 and 121,953.24

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Solution

The fourth proportional to 127,882.44, 176,421.78 and 121,953.24 is: 168,242.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,882.44 : 176,421.78 = 121,953.24 : x
  2. Step 2: Convert to fraction form
    127,882.44/176,421.78 = 121,953.24/x
  3. Step 3: Cross multiply
    127,882.44x = 176,421.78 × 121,953.24
  4. Step 4: Simplify right side
    127,882.44x = 21,515,207,677.57
  5. Step 5: Solve for x
    x = 21,515,207,677.57/127,882.44
  6. Step 6: Final answer
    x = 168,242.08

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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.