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Finding the Fourth Proportional to 58,821.60, 81,174.60 and 31,964.52

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Solution

The fourth proportional to 58,821.60, 81,174.60 and 31,964.52 is: 44,111.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,821.60 : 81,174.60 = 31,964.52 : x
  2. Step 2: Convert to fraction form
    58,821.60/81,174.60 = 31,964.52/x
  3. Step 3: Cross multiply
    58,821.60x = 81,174.60 × 31,964.52
  4. Step 4: Simplify right side
    58,821.60x = 2,594,707,125.19
  5. Step 5: Solve for x
    x = 2,594,707,125.19/58,821.60
  6. Step 6: Final answer
    x = 44,111.47

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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.