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Finding the Fourth Proportional to 479,242.65, 718,787.66 and 159,367.89

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Solution

The fourth proportional to 479,242.65, 718,787.66 and 159,367.89 is: 239,026.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,242.65 : 718,787.66 = 159,367.89 : x
  2. Step 2: Convert to fraction form
    479,242.65/718,787.66 = 159,367.89/x
  3. Step 3: Cross multiply
    479,242.65x = 718,787.66 × 159,367.89
  4. Step 4: Simplify right side
    479,242.65x = 114,551,671,935.40
  5. Step 5: Solve for x
    x = 114,551,671,935.40/479,242.65
  6. Step 6: Final answer
    x = 239,026.46

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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.