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Finding the Fourth Proportional to 226,971, 313,219.98 and 126,392.76

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Solution

The fourth proportional to 226,971, 313,219.98 and 126,392.76 is: 174,422.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,971 : 313,219.98 = 126,392.76 : x
  2. Step 2: Convert to fraction form
    226,971/313,219.98 = 126,392.76/x
  3. Step 3: Cross multiply
    226,971x = 313,219.98 × 126,392.76
  4. Step 4: Simplify right side
    226,971x = 39,588,737,759.34
  5. Step 5: Solve for x
    x = 39,588,737,759.34/226,971
  6. Step 6: Final answer
    x = 174,422.01

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1.5x scale

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.