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Finding the Fourth Proportional to 118,480.80, 177,730.38 and 39,595.30

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Solution

The fourth proportional to 118,480.80, 177,730.38 and 39,595.30 is: 59,396.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,480.80 : 177,730.38 = 39,595.30 : x
  2. Step 2: Convert to fraction form
    118,480.80/177,730.38 = 39,595.30/x
  3. Step 3: Cross multiply
    118,480.80x = 177,730.38 × 39,595.30
  4. Step 4: Simplify right side
    118,480.80x = 7,037,287,715.21
  5. Step 5: Solve for x
    x = 7,037,287,715.21/118,480.80
  6. Step 6: Final answer
    x = 59,396.02

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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.