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Finding the Fourth Proportional to 275,715.10, 413,572.65 and 76,066.30

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Solution

The fourth proportional to 275,715.10, 413,572.65 and 76,066.30 is: 114,099.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,715.10 : 413,572.65 = 76,066.30 : x
  2. Step 2: Convert to fraction form
    275,715.10/413,572.65 = 76,066.30/x
  3. Step 3: Cross multiply
    275,715.10x = 413,572.65 × 76,066.30
  4. Step 4: Simplify right side
    275,715.10x = 31,458,941,266.70
  5. Step 5: Solve for x
    x = 31,458,941,266.70/275,715.10
  6. Step 6: Final answer
    x = 114,099.45

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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.