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Finding the Fourth Proportional to 181,954.56, 251,151.36 and 114,931.20

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Solution

The fourth proportional to 181,954.56, 251,151.36 and 114,931.20 is: 158,639.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,954.56 : 251,151.36 = 114,931.20 : x
  2. Step 2: Convert to fraction form
    181,954.56/251,151.36 = 114,931.20/x
  3. Step 3: Cross multiply
    181,954.56x = 251,151.36 × 114,931.20
  4. Step 4: Simplify right side
    181,954.56x = 28,865,127,186.43
  5. Step 5: Solve for x
    x = 28,865,127,186.43/181,954.56
  6. Step 6: Final answer
    x = 158,639.21

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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.