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Finding the Fourth Proportional to 250,209.78, 375,314.76 and 63,221.28

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Solution

The fourth proportional to 250,209.78, 375,314.76 and 63,221.28 is: 94,831.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,209.78 : 375,314.76 = 63,221.28 : x
  2. Step 2: Convert to fraction form
    250,209.78/375,314.76 = 63,221.28/x
  3. Step 3: Cross multiply
    250,209.78x = 375,314.76 × 63,221.28
  4. Step 4: Simplify right side
    250,209.78x = 23,727,879,530.09
  5. Step 5: Solve for x
    x = 23,727,879,530.09/250,209.78
  6. Step 6: Final answer
    x = 94,831.94

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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.