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Finding the Fourth Proportional to 115,502.88, 173,278.80 and 36,606.72

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Solution

The fourth proportional to 115,502.88, 173,278.80 and 36,606.72 is: 54,917.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,502.88 : 173,278.80 = 36,606.72 : x
  2. Step 2: Convert to fraction form
    115,502.88/173,278.80 = 36,606.72/x
  3. Step 3: Cross multiply
    115,502.88x = 173,278.80 × 36,606.72
  4. Step 4: Simplify right side
    115,502.88x = 6,343,168,513.54
  5. Step 5: Solve for x
    x = 6,343,168,513.54/115,502.88
  6. Step 6: Final answer
    x = 54,917.84

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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.