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Finding the Fourth Proportional to 67,032.40, 100,470.36 and 49,338.40

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Solution

The fourth proportional to 67,032.40, 100,470.36 and 49,338.40 is: 73,950.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,032.40 : 100,470.36 = 49,338.40 : x
  2. Step 2: Convert to fraction form
    67,032.40/100,470.36 = 49,338.40/x
  3. Step 3: Cross multiply
    67,032.40x = 100,470.36 × 49,338.40
  4. Step 4: Simplify right side
    67,032.40x = 4,957,046,809.82
  5. Step 5: Solve for x
    x = 4,957,046,809.82/67,032.40
  6. Step 6: Final answer
    x = 73,950.01

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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.