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Finding the Fourth Proportional to 159,089.54, 219,541.59 and 87,468.93

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Solution

The fourth proportional to 159,089.54, 219,541.59 and 87,468.93 is: 120,706.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,089.54 : 219,541.59 = 87,468.93 : x
  2. Step 2: Convert to fraction form
    159,089.54/219,541.59 = 87,468.93/x
  3. Step 3: Cross multiply
    159,089.54x = 219,541.59 × 87,468.93
  4. Step 4: Simplify right side
    159,089.54x = 19,203,067,967.80
  5. Step 5: Solve for x
    x = 19,203,067,967.80/159,089.54
  6. Step 6: Final answer
    x = 120,706.04

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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.