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Finding the Fourth Proportional to 172,302.72, 237,788.64 and 96,856.08

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Solution

The fourth proportional to 172,302.72, 237,788.64 and 96,856.08 is: 133,667.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,302.72 : 237,788.64 = 96,856.08 : x
  2. Step 2: Convert to fraction form
    172,302.72/237,788.64 = 96,856.08/x
  3. Step 3: Cross multiply
    172,302.72x = 237,788.64 × 96,856.08
  4. Step 4: Simplify right side
    172,302.72x = 23,031,275,538.93
  5. Step 5: Solve for x
    x = 23,031,275,538.93/172,302.72
  6. Step 6: Final answer
    x = 133,667.51

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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.