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Finding the Fourth Proportional to 118,329.66, 177,503.72 and 39,443.89

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Solution

The fourth proportional to 118,329.66, 177,503.72 and 39,443.89 is: 59,168.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,329.66 : 177,503.72 = 39,443.89 : x
  2. Step 2: Convert to fraction form
    118,329.66/177,503.72 = 39,443.89/x
  3. Step 3: Cross multiply
    118,329.66x = 177,503.72 × 39,443.89
  4. Step 4: Simplify right side
    118,329.66x = 7,001,437,206.27
  5. Step 5: Solve for x
    x = 7,001,437,206.27/118,329.66
  6. Step 6: Final answer
    x = 59,168.91

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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.