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Finding the Fourth Proportional to 181,758.72, 250,663.73 and 113,781.88

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Solution

The fourth proportional to 181,758.72, 250,663.73 and 113,781.88 is: 156,916.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,758.72 : 250,663.73 = 113,781.88 : x
  2. Step 2: Convert to fraction form
    181,758.72/250,663.73 = 113,781.88/x
  3. Step 3: Cross multiply
    181,758.72x = 250,663.73 × 113,781.88
  4. Step 4: Simplify right side
    181,758.72x = 28,520,990,831.66
  5. Step 5: Solve for x
    x = 28,520,990,831.66/181,758.72
  6. Step 6: Final answer
    x = 156,916.77

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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.