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Finding the Fourth Proportional to 308,284, 462,426.02 and 86,668

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Solution

The fourth proportional to 308,284, 462,426.02 and 86,668 is: 130,002.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,284 : 462,426.02 = 86,668 : x
  2. Step 2: Convert to fraction form
    308,284/462,426.02 = 86,668/x
  3. Step 3: Cross multiply
    308,284x = 462,426.02 × 86,668
  4. Step 4: Simplify right side
    308,284x = 40,077,538,301.36
  5. Step 5: Solve for x
    x = 40,077,538,301.36/308,284
  6. Step 6: Final answer
    x = 130,002.01

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.