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Finding the Fourth Proportional to 210,860.70, 316,436.85 and 151,738.80

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Solution

The fourth proportional to 210,860.70, 316,436.85 and 151,738.80 is: 227,713.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,860.70 : 316,436.85 = 151,738.80 : x
  2. Step 2: Convert to fraction form
    210,860.70/316,436.85 = 151,738.80/x
  3. Step 3: Cross multiply
    210,860.70x = 316,436.85 × 151,738.80
  4. Step 4: Simplify right side
    210,860.70x = 48,015,747,894.78
  5. Step 5: Solve for x
    x = 48,015,747,894.78/210,860.70
  6. Step 6: Final answer
    x = 227,713.12

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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.