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Finding the Fourth Proportional to 191,578.55, 264,378.24 and 111,052.71

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Solution

The fourth proportional to 191,578.55, 264,378.24 and 111,052.71 is: 153,252.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,578.55 : 264,378.24 = 111,052.71 : x
  2. Step 2: Convert to fraction form
    191,578.55/264,378.24 = 111,052.71/x
  3. Step 3: Cross multiply
    191,578.55x = 264,378.24 × 111,052.71
  4. Step 4: Simplify right side
    191,578.55x = 29,359,920,017.03
  5. Step 5: Solve for x
    x = 29,359,920,017.03/191,578.55
  6. Step 6: Final answer
    x = 153,252.65

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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.