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Finding the Fourth Proportional to 177,606.40, 266,560.80 and 72,500.80

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Solution

The fourth proportional to 177,606.40, 266,560.80 and 72,500.80 is: 108,812.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,606.40 : 266,560.80 = 72,500.80 : x
  2. Step 2: Convert to fraction form
    177,606.40/266,560.80 = 72,500.80/x
  3. Step 3: Cross multiply
    177,606.40x = 266,560.80 × 72,500.80
  4. Step 4: Simplify right side
    177,606.40x = 19,325,871,248.64
  5. Step 5: Solve for x
    x = 19,325,871,248.64/177,606.40
  6. Step 6: Final answer
    x = 108,812.92

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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.