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Finding the Fourth Proportional to 228,340.62, 342,543.74 and 70,581.38

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Solution

The fourth proportional to 228,340.62, 342,543.74 and 70,581.38 is: 105,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,340.62 : 342,543.74 = 70,581.38 : x
  2. Step 2: Convert to fraction form
    228,340.62/342,543.74 = 70,581.38/x
  3. Step 3: Cross multiply
    228,340.62x = 342,543.74 × 70,581.38
  4. Step 4: Simplify right side
    228,340.62x = 24,177,207,813.94
  5. Step 5: Solve for x
    x = 24,177,207,813.94/228,340.62
  6. Step 6: Final answer
    x = 105,882.20

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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.