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Finding the Fourth Proportional to 278,548.17, 417,715.62 and 118,524.01

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Solution

The fourth proportional to 278,548.17, 417,715.62 and 118,524.01 is: 177,740.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,548.17 : 417,715.62 = 118,524.01 : x
  2. Step 2: Convert to fraction form
    278,548.17/417,715.62 = 118,524.01/x
  3. Step 3: Cross multiply
    278,548.17x = 417,715.62 × 118,524.01
  4. Step 4: Simplify right side
    278,548.17x = 49,509,328,233.46
  5. Step 5: Solve for x
    x = 49,509,328,233.46/278,548.17
  6. Step 6: Final answer
    x = 177,740.63

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