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Finding the Fourth Proportional to 177,600.40, 266,173.80 and 72,300.40

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Solution

The fourth proportional to 177,600.40, 266,173.80 and 72,300.40 is: 108,358.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,600.40 : 266,173.80 = 72,300.40 : x
  2. Step 2: Convert to fraction form
    177,600.40/266,173.80 = 72,300.40/x
  3. Step 3: Cross multiply
    177,600.40x = 266,173.80 × 72,300.40
  4. Step 4: Simplify right side
    177,600.40x = 19,244,472,209.52
  5. Step 5: Solve for x
    x = 19,244,472,209.52/177,600.40
  6. Step 6: Final answer
    x = 108,358.27

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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.