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Finding the Fourth Proportional to 118,200.72, 177,297.84 and 39,316.44

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Solution

The fourth proportional to 118,200.72, 177,297.84 and 39,316.44 is: 58,973.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,200.72 : 177,297.84 = 39,316.44 : x
  2. Step 2: Convert to fraction form
    118,200.72/177,297.84 = 39,316.44/x
  3. Step 3: Cross multiply
    118,200.72x = 177,297.84 × 39,316.44
  4. Step 4: Simplify right side
    118,200.72x = 6,970,719,888.49
  5. Step 5: Solve for x
    x = 6,970,719,888.49/118,200.72
  6. Step 6: Final answer
    x = 58,973.58

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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.