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Finding the Fourth Proportional to 171,404.85, 236,428.44 and 107,631.93

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Solution

The fourth proportional to 171,404.85, 236,428.44 and 107,631.93 is: 148,462.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,404.85 : 236,428.44 = 107,631.93 : x
  2. Step 2: Convert to fraction form
    171,404.85/236,428.44 = 107,631.93/x
  3. Step 3: Cross multiply
    171,404.85x = 236,428.44 × 107,631.93
  4. Step 4: Simplify right side
    171,404.85x = 25,447,249,304.09
  5. Step 5: Solve for x
    x = 25,447,249,304.09/171,404.85
  6. Step 6: Final answer
    x = 148,462.83

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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.