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Finding the Fourth Proportional to 159,295.08, 219,825.52 and 87,673.56

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Solution

The fourth proportional to 159,295.08, 219,825.52 and 87,673.56 is: 120,988.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,295.08 : 219,825.52 = 87,673.56 : x
  2. Step 2: Convert to fraction form
    159,295.08/219,825.52 = 87,673.56/x
  3. Step 3: Cross multiply
    159,295.08x = 219,825.52 × 87,673.56
  4. Step 4: Simplify right side
    159,295.08x = 19,272,885,917.25
  5. Step 5: Solve for x
    x = 19,272,885,917.25/159,295.08
  6. Step 6: Final answer
    x = 120,988.58

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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.