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Finding the Fourth Proportional to 235,881.52, 353,823.48 and 67,421.76

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Solution

The fourth proportional to 235,881.52, 353,823.48 and 67,421.76 is: 101,132.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,881.52 : 353,823.48 = 67,421.76 : x
  2. Step 2: Convert to fraction form
    235,881.52/353,823.48 = 67,421.76/x
  3. Step 3: Cross multiply
    235,881.52x = 353,823.48 × 67,421.76
  4. Step 4: Simplify right side
    235,881.52x = 23,855,401,750.92
  5. Step 5: Solve for x
    x = 23,855,401,750.92/235,881.52
  6. Step 6: Final answer
    x = 101,132.98

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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.