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Finding the Fourth Proportional to 338,269.50, 507,434.22 and 88,951.50

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Solution

The fourth proportional to 338,269.50, 507,434.22 and 88,951.50 is: 133,435.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,269.50 : 507,434.22 = 88,951.50 : x
  2. Step 2: Convert to fraction form
    338,269.50/507,434.22 = 88,951.50/x
  3. Step 3: Cross multiply
    338,269.50x = 507,434.22 × 88,951.50
  4. Step 4: Simplify right side
    338,269.50x = 45,137,035,020.33
  5. Step 5: Solve for x
    x = 45,137,035,020.33/338,269.50
  6. Step 6: Final answer
    x = 133,435.13

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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.