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Finding the Fourth Proportional to 107,934, 148,948.92 and 63,222

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Solution

The fourth proportional to 107,934, 148,948.92 and 63,222 is: 87,246.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,934 : 148,948.92 = 63,222 : x
  2. Step 2: Convert to fraction form
    107,934/148,948.92 = 63,222/x
  3. Step 3: Cross multiply
    107,934x = 148,948.92 × 63,222
  4. Step 4: Simplify right side
    107,934x = 9,416,848,620.24
  5. Step 5: Solve for x
    x = 9,416,848,620.24/107,934
  6. Step 6: Final answer
    x = 87,246.36

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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.