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Finding the Fourth Proportional to 58,906.72, 88,341.36 and 19,456.48

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Solution

The fourth proportional to 58,906.72, 88,341.36 and 19,456.48 is: 29,178.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,906.72 : 88,341.36 = 19,456.48 : x
  2. Step 2: Convert to fraction form
    58,906.72/88,341.36 = 19,456.48/x
  3. Step 3: Cross multiply
    58,906.72x = 88,341.36 × 19,456.48
  4. Step 4: Simplify right side
    58,906.72x = 1,718,811,904.01
  5. Step 5: Solve for x
    x = 1,718,811,904.01/58,906.72
  6. Step 6: Final answer
    x = 29,178.54

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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.