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Finding the Fourth Proportional to 160,076.54, 220,908.79 and 87,483.92

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Solution

The fourth proportional to 160,076.54, 220,908.79 and 87,483.92 is: 120,729.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,076.54 : 220,908.79 = 87,483.92 : x
  2. Step 2: Convert to fraction form
    160,076.54/220,908.79 = 87,483.92/x
  3. Step 3: Cross multiply
    160,076.54x = 220,908.79 × 87,483.92
  4. Step 4: Simplify right side
    160,076.54x = 19,325,967,159.08
  5. Step 5: Solve for x
    x = 19,325,967,159.08/160,076.54
  6. Step 6: Final answer
    x = 120,729.54

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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.