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Finding the Fourth Proportional to 177,536.90, 266,078.55 and 72,236.90

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Solution

The fourth proportional to 177,536.90, 266,078.55 and 72,236.90 is: 108,263.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,536.90 : 266,078.55 = 72,236.90 : x
  2. Step 2: Convert to fraction form
    177,536.90/266,078.55 = 72,236.90/x
  3. Step 3: Cross multiply
    177,536.90x = 266,078.55 × 72,236.90
  4. Step 4: Simplify right side
    177,536.90x = 19,220,689,608.50
  5. Step 5: Solve for x
    x = 19,220,689,608.50/177,536.90
  6. Step 6: Final answer
    x = 108,263.07

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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.