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Finding the Fourth Proportional to 191,198.13, 286,797.19 and 91,054.72

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Solution

The fourth proportional to 191,198.13, 286,797.19 and 91,054.72 is: 136,582.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,198.13 : 286,797.19 = 91,054.72 : x
  2. Step 2: Convert to fraction form
    191,198.13/286,797.19 = 91,054.72/x
  3. Step 3: Cross multiply
    191,198.13x = 286,797.19 × 91,054.72
  4. Step 4: Simplify right side
    191,198.13x = 26,114,237,832.24
  5. Step 5: Solve for x
    x = 26,114,237,832.24/191,198.13
  6. Step 6: Final answer
    x = 136,582.08

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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.