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Finding the Fourth Proportional to 58,740.78, 81,060.99 and 31,883.34

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Solution

The fourth proportional to 58,740.78, 81,060.99 and 31,883.34 is: 43,998.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,740.78 : 81,060.99 = 31,883.34 : x
  2. Step 2: Convert to fraction form
    58,740.78/81,060.99 = 31,883.34/x
  3. Step 3: Cross multiply
    58,740.78x = 81,060.99 × 31,883.34
  4. Step 4: Simplify right side
    58,740.78x = 2,584,495,104.91
  5. Step 5: Solve for x
    x = 2,584,495,104.91/58,740.78
  6. Step 6: Final answer
    x = 43,998.31

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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.