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Finding the Fourth Proportional to 302,300.39, 417,001.25 and 188,926.31

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Solution

The fourth proportional to 302,300.39, 417,001.25 and 188,926.31 is: 260,610.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,300.39 : 417,001.25 = 188,926.31 : x
  2. Step 2: Convert to fraction form
    302,300.39/417,001.25 = 188,926.31/x
  3. Step 3: Cross multiply
    302,300.39x = 417,001.25 × 188,926.31
  4. Step 4: Simplify right side
    302,300.39x = 78,782,508,942.71
  5. Step 5: Solve for x
    x = 78,782,508,942.71/302,300.39
  6. Step 6: Final answer
    x = 260,610.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.