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Finding the Fourth Proportional to 177,436.80, 266,155.20 and 127,864.80

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Solution

The fourth proportional to 177,436.80, 266,155.20 and 127,864.80 is: 191,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,436.80 : 266,155.20 = 127,864.80 : x
  2. Step 2: Convert to fraction form
    177,436.80/266,155.20 = 127,864.80/x
  3. Step 3: Cross multiply
    177,436.80x = 266,155.20 × 127,864.80
  4. Step 4: Simplify right side
    177,436.80x = 34,031,881,416.96
  5. Step 5: Solve for x
    x = 34,031,881,416.96/177,436.80
  6. Step 6: Final answer
    x = 191,797.20

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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.