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Finding the Fourth Proportional to 159,323.92, 219,873.28 and 87,710.60

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Solution

The fourth proportional to 159,323.92, 219,873.28 and 87,710.60 is: 121,044.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,323.92 : 219,873.28 = 87,710.60 : x
  2. Step 2: Convert to fraction form
    159,323.92/219,873.28 = 87,710.60/x
  3. Step 3: Cross multiply
    159,323.92x = 219,873.28 × 87,710.60
  4. Step 4: Simplify right side
    159,323.92x = 19,285,217,312.77
  5. Step 5: Solve for x
    x = 19,285,217,312.77/159,323.92
  6. Step 6: Final answer
    x = 121,044.08

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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.