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Finding the Fourth Proportional to 235,462.87, 353,191.40 and 57,971.42

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Solution

The fourth proportional to 235,462.87, 353,191.40 and 57,971.42 is: 86,956.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,462.87 : 353,191.40 = 57,971.42 : x
  2. Step 2: Convert to fraction form
    235,462.87/353,191.40 = 57,971.42/x
  3. Step 3: Cross multiply
    235,462.87x = 353,191.40 × 57,971.42
  4. Step 4: Simplify right side
    235,462.87x = 20,475,006,989.79
  5. Step 5: Solve for x
    x = 20,475,006,989.79/235,462.87
  6. Step 6: Final answer
    x = 86,956.41

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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.