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Finding the Fourth Proportional to 177,633.80, 266,742.30 and 118,730.60

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Solution

The fourth proportional to 177,633.80, 266,742.30 and 118,730.60 is: 178,290.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,633.80 : 266,742.30 = 118,730.60 : x
  2. Step 2: Convert to fraction form
    177,633.80/266,742.30 = 118,730.60/x
  3. Step 3: Cross multiply
    177,633.80x = 266,742.30 × 118,730.60
  4. Step 4: Simplify right side
    177,633.80x = 31,670,473,324.38
  5. Step 5: Solve for x
    x = 31,670,473,324.38/177,633.80
  6. Step 6: Final answer
    x = 178,290.81

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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.