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Finding the Fourth Proportional to 366,918.65, 550,377.98 and 156,966.65

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Solution

The fourth proportional to 366,918.65, 550,377.98 and 156,966.65 is: 235,449.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,918.65 : 550,377.98 = 156,966.65 : x
  2. Step 2: Convert to fraction form
    366,918.65/550,377.98 = 156,966.65/x
  3. Step 3: Cross multiply
    366,918.65x = 550,377.98 × 156,966.65
  4. Step 4: Simplify right side
    366,918.65x = 86,390,987,754.37
  5. Step 5: Solve for x
    x = 86,390,987,754.37/366,918.65
  6. Step 6: Final answer
    x = 235,449.98

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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.