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Finding the Fourth Proportional to 171,788.16, 237,073.68 and 100,156.08

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Solution

The fourth proportional to 171,788.16, 237,073.68 and 100,156.08 is: 138,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,788.16 : 237,073.68 = 100,156.08 : x
  2. Step 2: Convert to fraction form
    171,788.16/237,073.68 = 100,156.08/x
  3. Step 3: Cross multiply
    171,788.16x = 237,073.68 × 100,156.08
  4. Step 4: Simplify right side
    171,788.16x = 23,744,370,459.97
  5. Step 5: Solve for x
    x = 23,744,370,459.97/171,788.16
  6. Step 6: Final answer
    x = 138,218.90

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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.