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Finding the Fourth Proportional to 118,154.70, 177,232.05 and 65,010.60

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Solution

The fourth proportional to 118,154.70, 177,232.05 and 65,010.60 is: 97,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,154.70 : 177,232.05 = 65,010.60 : x
  2. Step 2: Convert to fraction form
    118,154.70/177,232.05 = 65,010.60/x
  3. Step 3: Cross multiply
    118,154.70x = 177,232.05 × 65,010.60
  4. Step 4: Simplify right side
    118,154.70x = 11,521,961,909.73
  5. Step 5: Solve for x
    x = 11,521,961,909.73/118,154.70
  6. Step 6: Final answer
    x = 97,515.90

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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.