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Finding the Fourth Proportional to 176,557.89, 243,644.81 and 100,084.05

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Solution

The fourth proportional to 176,557.89, 243,644.81 and 100,084.05 is: 138,113.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,557.89 : 243,644.81 = 100,084.05 : x
  2. Step 2: Convert to fraction form
    176,557.89/243,644.81 = 100,084.05/x
  3. Step 3: Cross multiply
    176,557.89x = 243,644.81 × 100,084.05
  4. Step 4: Simplify right side
    176,557.89x = 24,384,958,845.86
  5. Step 5: Solve for x
    x = 24,384,958,845.86/176,557.89
  6. Step 6: Final answer
    x = 138,113.10

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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.