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Finding the Fourth Proportional to 54,240.96, 74,799.92 and 42,299.92

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Solution

The fourth proportional to 54,240.96, 74,799.92 and 42,299.92 is: 58,332.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,240.96 : 74,799.92 = 42,299.92 : x
  2. Step 2: Convert to fraction form
    54,240.96/74,799.92 = 42,299.92/x
  3. Step 3: Cross multiply
    54,240.96x = 74,799.92 × 42,299.92
  4. Step 4: Simplify right side
    54,240.96x = 3,164,030,632.01
  5. Step 5: Solve for x
    x = 3,164,030,632.01/54,240.96
  6. Step 6: Final answer
    x = 58,332.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.