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Finding the Fourth Proportional to 228,101.70, 342,152.55 and 61,889.70

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Solution

The fourth proportional to 228,101.70, 342,152.55 and 61,889.70 is: 92,834.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,101.70 : 342,152.55 = 61,889.70 : x
  2. Step 2: Convert to fraction form
    228,101.70/342,152.55 = 61,889.70/x
  3. Step 3: Cross multiply
    228,101.70x = 342,152.55 × 61,889.70
  4. Step 4: Simplify right side
    228,101.70x = 21,175,718,673.74
  5. Step 5: Solve for x
    x = 21,175,718,673.74/228,101.70
  6. Step 6: Final answer
    x = 92,834.55

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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.