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Finding the Fourth Proportional to 191,217.30, 286,935.30 and 132,095.40

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Solution

The fourth proportional to 191,217.30, 286,935.30 and 132,095.40 is: 198,218.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,217.30 : 286,935.30 = 132,095.40 : x
  2. Step 2: Convert to fraction form
    191,217.30/286,935.30 = 132,095.40/x
  3. Step 3: Cross multiply
    191,217.30x = 286,935.30 × 132,095.40
  4. Step 4: Simplify right side
    191,217.30x = 37,902,833,227.62
  5. Step 5: Solve for x
    x = 37,902,833,227.62/191,217.30
  6. Step 6: Final answer
    x = 198,218.64

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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.