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Finding the Fourth Proportional to 115,877.40, 173,835.30 and 49,349.40

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Solution

The fourth proportional to 115,877.40, 173,835.30 and 49,349.40 is: 74,032.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,877.40 : 173,835.30 = 49,349.40 : x
  2. Step 2: Convert to fraction form
    115,877.40/173,835.30 = 49,349.40/x
  3. Step 3: Cross multiply
    115,877.40x = 173,835.30 × 49,349.40
  4. Step 4: Simplify right side
    115,877.40x = 8,578,667,753.82
  5. Step 5: Solve for x
    x = 8,578,667,753.82/115,877.40
  6. Step 6: Final answer
    x = 74,032.28

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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.