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Finding the Fourth Proportional to 177,651.80, 266,348.10 and 72,416.60

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Solution

The fourth proportional to 177,651.80, 266,348.10 and 72,416.60 is: 108,572.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,651.80 : 266,348.10 = 72,416.60 : x
  2. Step 2: Convert to fraction form
    177,651.80/266,348.10 = 72,416.60/x
  3. Step 3: Cross multiply
    177,651.80x = 266,348.10 × 72,416.60
  4. Step 4: Simplify right side
    177,651.80x = 19,288,023,818.46
  5. Step 5: Solve for x
    x = 19,288,023,818.46/177,651.80
  6. Step 6: Final answer
    x = 108,572.07

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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.