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Finding the Fourth Proportional to 191,398.78, 264,130.47 and 110,830.61

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Solution

The fourth proportional to 191,398.78, 264,130.47 and 110,830.61 is: 152,946.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,398.78 : 264,130.47 = 110,830.61 : x
  2. Step 2: Convert to fraction form
    191,398.78/264,130.47 = 110,830.61/x
  3. Step 3: Cross multiply
    191,398.78x = 264,130.47 × 110,830.61
  4. Step 4: Simplify right side
    191,398.78x = 29,273,741,770.01
  5. Step 5: Solve for x
    x = 29,273,741,770.01/191,398.78
  6. Step 6: Final answer
    x = 152,946.33

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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.