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Finding the Fourth Proportional to 254,480.40, 381,876.60 and 104,792.40

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Solution

The fourth proportional to 254,480.40, 381,876.60 and 104,792.40 is: 157,252.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,480.40 : 381,876.60 = 104,792.40 : x
  2. Step 2: Convert to fraction form
    254,480.40/381,876.60 = 104,792.40/x
  3. Step 3: Cross multiply
    254,480.40x = 381,876.60 × 104,792.40
  4. Step 4: Simplify right side
    254,480.40x = 40,017,765,417.84
  5. Step 5: Solve for x
    x = 40,017,765,417.84/254,480.40
  6. Step 6: Final answer
    x = 157,252.84

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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.