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Finding the Fourth Proportional to 270,907.72, 406,399.58 and 113,100.28

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Solution

The fourth proportional to 270,907.72, 406,399.58 and 113,100.28 is: 169,666.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,907.72 : 406,399.58 = 113,100.28 : x
  2. Step 2: Convert to fraction form
    270,907.72/406,399.58 = 113,100.28/x
  3. Step 3: Cross multiply
    270,907.72x = 406,399.58 × 113,100.28
  4. Step 4: Simplify right side
    270,907.72x = 45,963,906,289.88
  5. Step 5: Solve for x
    x = 45,963,906,289.88/270,907.72
  6. Step 6: Final answer
    x = 169,666.28

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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.