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Finding the Fourth Proportional to 103,574.84, 155,382.30 and 40,392.41

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Solution

The fourth proportional to 103,574.84, 155,382.30 and 40,392.41 is: 60,596.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,574.84 : 155,382.30 = 40,392.41 : x
  2. Step 2: Convert to fraction form
    103,574.84/155,382.30 = 40,392.41/x
  3. Step 3: Cross multiply
    103,574.84x = 155,382.30 × 40,392.41
  4. Step 4: Simplify right side
    103,574.84x = 6,276,264,791.43
  5. Step 5: Solve for x
    x = 6,276,264,791.43/103,574.84
  6. Step 6: Final answer
    x = 60,596.43

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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.