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Finding the Fourth Proportional to 181,893.70, 272,840.55 and 118,908.10

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Solution

The fourth proportional to 181,893.70, 272,840.55 and 118,908.10 is: 178,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,893.70 : 272,840.55 = 118,908.10 : x
  2. Step 2: Convert to fraction form
    181,893.70/272,840.55 = 118,908.10/x
  3. Step 3: Cross multiply
    181,893.70x = 272,840.55 × 118,908.10
  4. Step 4: Simplify right side
    181,893.70x = 32,442,951,403.46
  5. Step 5: Solve for x
    x = 32,442,951,403.46/181,893.70
  6. Step 6: Final answer
    x = 178,362.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.