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Finding the Fourth Proportional to 307,582.48, 424,463.88 and 173,446.48

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Solution

The fourth proportional to 307,582.48, 424,463.88 and 173,446.48 is: 239,356.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,582.48 : 424,463.88 = 173,446.48 : x
  2. Step 2: Convert to fraction form
    307,582.48/424,463.88 = 173,446.48/x
  3. Step 3: Cross multiply
    307,582.48x = 424,463.88 × 173,446.48
  4. Step 4: Simplify right side
    307,582.48x = 73,621,765,873.14
  5. Step 5: Solve for x
    x = 73,621,765,873.14/307,582.48
  6. Step 6: Final answer
    x = 239,356.17

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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.