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Finding the Fourth Proportional to 118,058.81, 177,041.23 and 43,161.89

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Solution

The fourth proportional to 118,058.81, 177,041.23 and 43,161.89 is: 64,725.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,058.81 : 177,041.23 = 43,161.89 : x
  2. Step 2: Convert to fraction form
    118,058.81/177,041.23 = 43,161.89/x
  3. Step 3: Cross multiply
    118,058.81x = 177,041.23 × 43,161.89
  4. Step 4: Simplify right side
    118,058.81x = 7,641,433,101.61
  5. Step 5: Solve for x
    x = 7,641,433,101.61/118,058.81
  6. Step 6: Final answer
    x = 64,725.65

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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.