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Finding the Fourth Proportional to 88,697.78, 133,225.75 and 53,226.47

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Solution

The fourth proportional to 88,697.78, 133,225.75 and 53,226.47 is: 79,947.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,697.78 : 133,225.75 = 53,226.47 : x
  2. Step 2: Convert to fraction form
    88,697.78/133,225.75 = 53,226.47/x
  3. Step 3: Cross multiply
    88,697.78x = 133,225.75 × 53,226.47
  4. Step 4: Simplify right side
    88,697.78x = 7,091,135,736.41
  5. Step 5: Solve for x
    x = 7,091,135,736.41/88,697.78
  6. Step 6: Final answer
    x = 79,947.16

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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.