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Finding the Fourth Proportional to 270,157.47, 405,236.21 and 101,715.59

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Solution

The fourth proportional to 270,157.47, 405,236.21 and 101,715.59 is: 152,573.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,157.47 : 405,236.21 = 101,715.59 : x
  2. Step 2: Convert to fraction form
    270,157.47/405,236.21 = 101,715.59/x
  3. Step 3: Cross multiply
    270,157.47x = 405,236.21 × 101,715.59
  4. Step 4: Simplify right side
    270,157.47x = 41,218,837,654.75
  5. Step 5: Solve for x
    x = 41,218,837,654.75/270,157.47
  6. Step 6: Final answer
    x = 152,573.38

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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.