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Finding the Fourth Proportional to 173,456.92, 239,357.30 and 105,464.52

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Solution

The fourth proportional to 173,456.92, 239,357.30 and 105,464.52 is: 145,532.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,456.92 : 239,357.30 = 105,464.52 : x
  2. Step 2: Convert to fraction form
    173,456.92/239,357.30 = 105,464.52/x
  3. Step 3: Cross multiply
    173,456.92x = 239,357.30 × 105,464.52
  4. Step 4: Simplify right side
    173,456.92x = 25,243,702,753.00
  5. Step 5: Solve for x
    x = 25,243,702,753.00/173,456.92
  6. Step 6: Final answer
    x = 145,532.98

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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.