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Finding the Fourth Proportional to 115,442.40, 173,179.80 and 36,548.40

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Solution

The fourth proportional to 115,442.40, 173,179.80 and 36,548.40 is: 54,827.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,442.40 : 173,179.80 = 36,548.40 : x
  2. Step 2: Convert to fraction form
    115,442.40/173,179.80 = 36,548.40/x
  3. Step 3: Cross multiply
    115,442.40x = 173,179.80 × 36,548.40
  4. Step 4: Simplify right side
    115,442.40x = 6,329,444,602.32
  5. Step 5: Solve for x
    x = 6,329,444,602.32/115,442.40
  6. Step 6: Final answer
    x = 54,827.73

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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.