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Finding the Fourth Proportional to 109,663.20, 164,667.60 and 63,007.20

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Solution

The fourth proportional to 109,663.20, 164,667.60 and 63,007.20 is: 94,610.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,663.20 : 164,667.60 = 63,007.20 : x
  2. Step 2: Convert to fraction form
    109,663.20/164,667.60 = 63,007.20/x
  3. Step 3: Cross multiply
    109,663.20x = 164,667.60 × 63,007.20
  4. Step 4: Simplify right side
    109,663.20x = 10,375,244,406.72
  5. Step 5: Solve for x
    x = 10,375,244,406.72/109,663.20
  6. Step 6: Final answer
    x = 94,610.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.