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Finding the Fourth Proportional to 224,685.72, 336,991.88 and 74,927.24

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Solution

The fourth proportional to 224,685.72, 336,991.88 and 74,927.24 is: 112,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,685.72 : 336,991.88 = 74,927.24 : x
  2. Step 2: Convert to fraction form
    224,685.72/336,991.88 = 74,927.24/x
  3. Step 3: Cross multiply
    224,685.72x = 336,991.88 × 74,927.24
  4. Step 4: Simplify right side
    224,685.72x = 25,249,871,470.81
  5. Step 5: Solve for x
    x = 25,249,871,470.81/224,685.72
  6. Step 6: Final answer
    x = 112,378.62

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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.