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Finding the Fourth Proportional to 191,863.47, 264,707.13 and 111,261.60

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Solution

The fourth proportional to 191,863.47, 264,707.13 and 111,261.60 is: 153,503.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,863.47 : 264,707.13 = 111,261.60 : x
  2. Step 2: Convert to fraction form
    191,863.47/264,707.13 = 111,261.60/x
  3. Step 3: Cross multiply
    191,863.47x = 264,707.13 × 111,261.60
  4. Step 4: Simplify right side
    191,863.47x = 29,451,738,815.21
  5. Step 5: Solve for x
    x = 29,451,738,815.21/191,863.47
  6. Step 6: Final answer
    x = 153,503.63

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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.