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Finding the Fourth Proportional to 97,693.52, 146,550.96 and 31,118.00

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Solution

The fourth proportional to 97,693.52, 146,550.96 and 31,118.00 is: 46,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,693.52 : 146,550.96 = 31,118.00 : x
  2. Step 2: Convert to fraction form
    97,693.52/146,550.96 = 31,118.00/x
  3. Step 3: Cross multiply
    97,693.52x = 146,550.96 × 31,118.00
  4. Step 4: Simplify right side
    97,693.52x = 4,560,372,040.53
  5. Step 5: Solve for x
    x = 4,560,372,040.53/97,693.52
  6. Step 6: Final answer
    x = 46,680.40

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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.