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Finding the Fourth Proportional to 160,790.67, 221,991.44 and 103,529.54

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Solution

The fourth proportional to 160,790.67, 221,991.44 and 103,529.54 is: 142,935.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,790.67 : 221,991.44 = 103,529.54 : x
  2. Step 2: Convert to fraction form
    160,790.67/221,991.44 = 103,529.54/x
  3. Step 3: Cross multiply
    160,790.67x = 221,991.44 × 103,529.54
  4. Step 4: Simplify right side
    160,790.67x = 22,982,671,704.47
  5. Step 5: Solve for x
    x = 22,982,671,704.47/160,790.67
  6. Step 6: Final answer
    x = 142,935.36

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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.