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Finding the Fourth Proportional to 88,925.90, 133,216.05 and 49,412.30

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Solution

The fourth proportional to 88,925.90, 133,216.05 and 49,412.30 is: 74,022.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,925.90 : 133,216.05 = 49,412.30 : x
  2. Step 2: Convert to fraction form
    88,925.90/133,216.05 = 49,412.30/x
  3. Step 3: Cross multiply
    88,925.90x = 133,216.05 × 49,412.30
  4. Step 4: Simplify right side
    88,925.90x = 6,582,511,427.42
  5. Step 5: Solve for x
    x = 6,582,511,427.42/88,925.90
  6. Step 6: Final answer
    x = 74,022.43

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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.