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Finding the Fourth Proportional to 159,875.65, 220,628.18 and 88,255.51

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Solution

The fourth proportional to 159,875.65, 220,628.18 and 88,255.51 is: 121,792.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,875.65 : 220,628.18 = 88,255.51 : x
  2. Step 2: Convert to fraction form
    159,875.65/220,628.18 = 88,255.51/x
  3. Step 3: Cross multiply
    159,875.65x = 220,628.18 × 88,255.51
  4. Step 4: Simplify right side
    159,875.65x = 19,471,652,546.27
  5. Step 5: Solve for x
    x = 19,471,652,546.27/159,875.65
  6. Step 6: Final answer
    x = 121,792.48

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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.