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Finding the Fourth Proportional to 115,881.40, 173,841.30 and 49,353.40

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Solution

The fourth proportional to 115,881.40, 173,841.30 and 49,353.40 is: 74,038.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,881.40 : 173,841.30 = 49,353.40 : x
  2. Step 2: Convert to fraction form
    115,881.40/173,841.30 = 49,353.40/x
  3. Step 3: Cross multiply
    115,881.40x = 173,841.30 × 49,353.40
  4. Step 4: Simplify right side
    115,881.40x = 8,579,659,215.42
  5. Step 5: Solve for x
    x = 8,579,659,215.42/115,881.40
  6. Step 6: Final answer
    x = 74,038.28

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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.