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Finding the Fourth Proportional to 308,313.52, 462,451.83 and 83,668.98

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Solution

The fourth proportional to 308,313.52, 462,451.83 and 83,668.98 is: 125,498.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,313.52 : 462,451.83 = 83,668.98 : x
  2. Step 2: Convert to fraction form
    308,313.52/462,451.83 = 83,668.98/x
  3. Step 3: Cross multiply
    308,313.52x = 462,451.83 × 83,668.98
  4. Step 4: Simplify right side
    308,313.52x = 38,692,873,566.09
  5. Step 5: Solve for x
    x = 38,692,873,566.09/308,313.52
  6. Step 6: Final answer
    x = 125,498.46

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1.5x scale

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.