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Finding the Fourth Proportional to 159,443.92, 220,032.92 and 86,846.59

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Solution

The fourth proportional to 159,443.92, 220,032.92 and 86,846.59 is: 119,848.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,443.92 : 220,032.92 = 86,846.59 : x
  2. Step 2: Convert to fraction form
    159,443.92/220,032.92 = 86,846.59/x
  3. Step 3: Cross multiply
    159,443.92x = 220,032.92 × 86,846.59
  4. Step 4: Simplify right side
    159,443.92x = 19,109,109,037.64
  5. Step 5: Solve for x
    x = 19,109,109,037.64/159,443.92
  6. Step 6: Final answer
    x = 119,848.46

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1.5x scale

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.