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Finding the Fourth Proportional to 118,423.62, 177,628.14 and 39,531.24

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Solution

The fourth proportional to 118,423.62, 177,628.14 and 39,531.24 is: 59,294.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,423.62 : 177,628.14 = 39,531.24 : x
  2. Step 2: Convert to fraction form
    118,423.62/177,628.14 = 39,531.24/x
  3. Step 3: Cross multiply
    118,423.62x = 177,628.14 × 39,531.24
  4. Step 4: Simplify right side
    118,423.62x = 7,021,860,633.09
  5. Step 5: Solve for x
    x = 7,021,860,633.09/118,423.62
  6. Step 6: Final answer
    x = 59,294.43

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1.5x scale

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.