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Finding the Fourth Proportional to 159,445.88, 219,991.54 and 110,993.52

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Solution

The fourth proportional to 159,445.88, 219,991.54 and 110,993.52 is: 153,140.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,445.88 : 219,991.54 = 110,993.52 : x
  2. Step 2: Convert to fraction form
    159,445.88/219,991.54 = 110,993.52/x
  3. Step 3: Cross multiply
    159,445.88x = 219,991.54 × 110,993.52
  4. Step 4: Simplify right side
    159,445.88x = 24,417,635,394.82
  5. Step 5: Solve for x
    x = 24,417,635,394.82/159,445.88
  6. Step 6: Final answer
    x = 153,140.59

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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.