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Finding the Fourth Proportional to 244,064.30, 366,315.15 and 210,821.90

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Solution

The fourth proportional to 244,064.30, 366,315.15 and 210,821.90 is: 316,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,064.30 : 366,315.15 = 210,821.90 : x
  2. Step 2: Convert to fraction form
    244,064.30/366,315.15 = 210,821.90/x
  3. Step 3: Cross multiply
    244,064.30x = 366,315.15 × 210,821.90
  4. Step 4: Simplify right side
    244,064.30x = 77,227,255,921.79
  5. Step 5: Solve for x
    x = 77,227,255,921.79/244,064.30
  6. Step 6: Final answer
    x = 316,421.76

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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.