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Finding the Fourth Proportional to 177,438.80, 266,158.20 and 127,866.80

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Solution

The fourth proportional to 177,438.80, 266,158.20 and 127,866.80 is: 191,800.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,438.80 : 266,158.20 = 127,866.80 : x
  2. Step 2: Convert to fraction form
    177,438.80/266,158.20 = 127,866.80/x
  3. Step 3: Cross multiply
    177,438.80x = 266,158.20 × 127,866.80
  4. Step 4: Simplify right side
    177,438.80x = 34,032,797,327.76
  5. Step 5: Solve for x
    x = 34,032,797,327.76/177,438.80
  6. Step 6: Final answer
    x = 191,800.20

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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.