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Finding the Fourth Proportional to 279,502.40, 419,253.68 and 92,528.48

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Solution

The fourth proportional to 279,502.40, 419,253.68 and 92,528.48 is: 138,792.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,502.40 : 419,253.68 = 92,528.48 : x
  2. Step 2: Convert to fraction form
    279,502.40/419,253.68 = 92,528.48/x
  3. Step 3: Cross multiply
    279,502.40x = 419,253.68 × 92,528.48
  4. Step 4: Simplify right side
    279,502.40x = 38,792,905,744.81
  5. Step 5: Solve for x
    x = 38,792,905,744.81/279,502.40
  6. Step 6: Final answer
    x = 138,792.75

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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.