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Finding the Fourth Proportional to 250,304.64, 375,223.68 and 83,976

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Solution

The fourth proportional to 250,304.64, 375,223.68 and 83,976 is: 125,885.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,304.64 : 375,223.68 = 83,976 : x
  2. Step 2: Convert to fraction form
    250,304.64/375,223.68 = 83,976/x
  3. Step 3: Cross multiply
    250,304.64x = 375,223.68 × 83,976
  4. Step 4: Simplify right side
    250,304.64x = 31,509,783,751.68
  5. Step 5: Solve for x
    x = 31,509,783,751.68/250,304.64
  6. Step 6: Final answer
    x = 125,885.74

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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.