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Finding the Fourth Proportional to 241,260.66, 361,521.95 and 128,956.86

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Solution

The fourth proportional to 241,260.66, 361,521.95 and 128,956.86 is: 193,238.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,260.66 : 361,521.95 = 128,956.86 : x
  2. Step 2: Convert to fraction form
    241,260.66/361,521.95 = 128,956.86/x
  3. Step 3: Cross multiply
    241,260.66x = 361,521.95 × 128,956.86
  4. Step 4: Simplify right side
    241,260.66x = 46,620,734,848.29
  5. Step 5: Solve for x
    x = 46,620,734,848.29/241,260.66
  6. Step 6: Final answer
    x = 193,238.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.