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Finding the Fourth Proportional to 210,653.46, 316,060.00 and 126,472.41

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Solution

The fourth proportional to 210,653.46, 316,060.00 and 126,472.41 is: 189,756.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,653.46 : 316,060.00 = 126,472.41 : x
  2. Step 2: Convert to fraction form
    210,653.46/316,060.00 = 126,472.41/x
  3. Step 3: Cross multiply
    210,653.46x = 316,060.00 × 126,472.41
  4. Step 4: Simplify right side
    210,653.46x = 39,972,869,588.42
  5. Step 5: Solve for x
    x = 39,972,869,588.42/210,653.46
  6. Step 6: Final answer
    x = 189,756.53

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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.