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Finding the Fourth Proportional to 356,392.25, 534,523.80 and 143,151.56

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Solution

The fourth proportional to 356,392.25, 534,523.80 and 143,151.56 is: 214,701.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,392.25 : 534,523.80 = 143,151.56 : x
  2. Step 2: Convert to fraction form
    356,392.25/534,523.80 = 143,151.56/x
  3. Step 3: Cross multiply
    356,392.25x = 534,523.80 × 143,151.56
  4. Step 4: Simplify right side
    356,392.25x = 76,517,915,827.13
  5. Step 5: Solve for x
    x = 76,517,915,827.13/356,392.25
  6. Step 6: Final answer
    x = 214,701.40

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1.5x scale

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.