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Finding the Fourth Proportional to 262,426.72, 393,646.08 and 93,958.48

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Solution

The fourth proportional to 262,426.72, 393,646.08 and 93,958.48 is: 140,939.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,426.72 : 393,646.08 = 93,958.48 : x
  2. Step 2: Convert to fraction form
    262,426.72/393,646.08 = 93,958.48/x
  3. Step 3: Cross multiply
    262,426.72x = 393,646.08 × 93,958.48
  4. Step 4: Simplify right side
    262,426.72x = 36,986,387,334.76
  5. Step 5: Solve for x
    x = 36,986,387,334.76/262,426.72
  6. Step 6: Final answer
    x = 140,939.87

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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.