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Finding the Fourth Proportional to 228,426.71, 342,717.90 and 68,506.52

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Solution

The fourth proportional to 228,426.71, 342,717.90 and 68,506.52 is: 102,783.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,426.71 : 342,717.90 = 68,506.52 : x
  2. Step 2: Convert to fraction form
    228,426.71/342,717.90 = 68,506.52/x
  3. Step 3: Cross multiply
    228,426.71x = 342,717.90 × 68,506.52
  4. Step 4: Simplify right side
    228,426.71x = 23,478,410,670.71
  5. Step 5: Solve for x
    x = 23,478,410,670.71/228,426.71
  6. Step 6: Final answer
    x = 102,783.12

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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.