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Finding the Fourth Proportional to 177,799.20, 266,698.80 and 53,140.20

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Solution

The fourth proportional to 177,799.20, 266,698.80 and 53,140.20 is: 79,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,799.20 : 266,698.80 = 53,140.20 : x
  2. Step 2: Convert to fraction form
    177,799.20/266,698.80 = 53,140.20/x
  3. Step 3: Cross multiply
    177,799.20x = 266,698.80 × 53,140.20
  4. Step 4: Simplify right side
    177,799.20x = 14,172,427,571.76
  5. Step 5: Solve for x
    x = 14,172,427,571.76/177,799.20
  6. Step 6: Final answer
    x = 79,710.30

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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.