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Finding the Fourth Proportional to 262,335.29, 393,502.94 and 72,795.72

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Solution

The fourth proportional to 262,335.29, 393,502.94 and 72,795.72 is: 109,193.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,335.29 : 393,502.94 = 72,795.72 : x
  2. Step 2: Convert to fraction form
    262,335.29/393,502.94 = 72,795.72/x
  3. Step 3: Cross multiply
    262,335.29x = 393,502.94 × 72,795.72
  4. Step 4: Simplify right side
    262,335.29x = 28,645,329,839.42
  5. Step 5: Solve for x
    x = 28,645,329,839.42/262,335.29
  6. Step 6: Final answer
    x = 109,193.58

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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.