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Finding the Fourth Proportional to 191,585.70, 264,377.85 and 105,527.91

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Solution

The fourth proportional to 191,585.70, 264,377.85 and 105,527.91 is: 145,622.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,585.70 : 264,377.85 = 105,527.91 : x
  2. Step 2: Convert to fraction form
    191,585.70/264,377.85 = 105,527.91/x
  3. Step 3: Cross multiply
    191,585.70x = 264,377.85 × 105,527.91
  4. Step 4: Simplify right side
    191,585.70x = 27,899,241,960.79
  5. Step 5: Solve for x
    x = 27,899,241,960.79/191,585.70
  6. Step 6: Final answer
    x = 145,622.78

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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.