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Finding the Fourth Proportional to 228,750.38, 343,147.74 and 70,936.46

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Solution

The fourth proportional to 228,750.38, 343,147.74 and 70,936.46 is: 106,411.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,750.38 : 343,147.74 = 70,936.46 : x
  2. Step 2: Convert to fraction form
    228,750.38/343,147.74 = 70,936.46/x
  3. Step 3: Cross multiply
    228,750.38x = 343,147.74 × 70,936.46
  4. Step 4: Simplify right side
    228,750.38x = 24,341,683,862.18
  5. Step 5: Solve for x
    x = 24,341,683,862.18/228,750.38
  6. Step 6: Final answer
    x = 106,411.56

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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.