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Finding the Fourth Proportional to 268,276.90, 370,199.97 and 147,411.94

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Solution

The fourth proportional to 268,276.90, 370,199.97 and 147,411.94 is: 203,416.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,276.90 : 370,199.97 = 147,411.94 : x
  2. Step 2: Convert to fraction form
    268,276.90/370,199.97 = 147,411.94/x
  3. Step 3: Cross multiply
    268,276.90x = 370,199.97 × 147,411.94
  4. Step 4: Simplify right side
    268,276.90x = 54,571,895,765.64
  5. Step 5: Solve for x
    x = 54,571,895,765.64/268,276.90
  6. Step 6: Final answer
    x = 203,416.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.