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Finding the Fourth Proportional to 159,508.76, 219,968.56 and 104,963.36

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Solution

The fourth proportional to 159,508.76, 219,968.56 and 104,963.36 is: 144,748.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,508.76 : 219,968.56 = 104,963.36 : x
  2. Step 2: Convert to fraction form
    159,508.76/219,968.56 = 104,963.36/x
  3. Step 3: Cross multiply
    159,508.76x = 219,968.56 × 104,963.36
  4. Step 4: Simplify right side
    159,508.76x = 23,088,639,151.96
  5. Step 5: Solve for x
    x = 23,088,639,151.96/159,508.76
  6. Step 6: Final answer
    x = 144,748.41

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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.