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Finding the Fourth Proportional to 307,581.48, 424,462.50 and 173,445.48

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Solution

The fourth proportional to 307,581.48, 424,462.50 and 173,445.48 is: 239,354.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,581.48 : 424,462.50 = 173,445.48 : x
  2. Step 2: Convert to fraction form
    307,581.48/424,462.50 = 173,445.48/x
  3. Step 3: Cross multiply
    307,581.48x = 424,462.50 × 173,445.48
  4. Step 4: Simplify right side
    307,581.48x = 73,621,102,054.50
  5. Step 5: Solve for x
    x = 73,621,102,054.50/307,581.48
  6. Step 6: Final answer
    x = 239,354.79

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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.