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Finding the Fourth Proportional to 308,080.20, 461,342.70 and 202,326.60

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Solution

The fourth proportional to 308,080.20, 461,342.70 and 202,326.60 is: 302,979.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,080.20 : 461,342.70 = 202,326.60 : x
  2. Step 2: Convert to fraction form
    308,080.20/461,342.70 = 202,326.60/x
  3. Step 3: Cross multiply
    308,080.20x = 461,342.70 × 202,326.60
  4. Step 4: Simplify right side
    308,080.20x = 93,341,899,925.82
  5. Step 5: Solve for x
    x = 93,341,899,925.82/308,080.20
  6. Step 6: Final answer
    x = 302,979.22

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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.