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Finding the Fourth Proportional to 158,873.52, 219,245.34 and 87,258.06

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Solution

The fourth proportional to 158,873.52, 219,245.34 and 87,258.06 is: 120,416.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,873.52 : 219,245.34 = 87,258.06 : x
  2. Step 2: Convert to fraction form
    158,873.52/219,245.34 = 87,258.06/x
  3. Step 3: Cross multiply
    158,873.52x = 219,245.34 × 87,258.06
  4. Step 4: Simplify right side
    158,873.52x = 19,130,923,032.44
  5. Step 5: Solve for x
    x = 19,130,923,032.44/158,873.52
  6. Step 6: Final answer
    x = 120,416.06

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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.