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Finding the Fourth Proportional to 251,628.75, 377,443.14 and 64,640.25

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Solution

The fourth proportional to 251,628.75, 377,443.14 and 64,640.25 is: 96,960.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,628.75 : 377,443.14 = 64,640.25 : x
  2. Step 2: Convert to fraction form
    251,628.75/377,443.14 = 64,640.25/x
  3. Step 3: Cross multiply
    251,628.75x = 377,443.14 × 64,640.25
  4. Step 4: Simplify right side
    251,628.75x = 24,398,018,930.39
  5. Step 5: Solve for x
    x = 24,398,018,930.39/251,628.75
  6. Step 6: Final answer
    x = 96,960.38

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1.5x scale

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.