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Finding the Fourth Proportional to 308,387.90, 462,211.68 and 158,698.82

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Solution

The fourth proportional to 308,387.90, 462,211.68 and 158,698.82 is: 237,857.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,387.90 : 462,211.68 = 158,698.82 : x
  2. Step 2: Convert to fraction form
    308,387.90/462,211.68 = 158,698.82/x
  3. Step 3: Cross multiply
    308,387.90x = 462,211.68 × 158,698.82
  4. Step 4: Simplify right side
    308,387.90x = 73,352,448,206.22
  5. Step 5: Solve for x
    x = 73,352,448,206.22/308,387.90
  6. Step 6: Final answer
    x = 237,857.74

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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.