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Finding the Fourth Proportional to 301,142.96, 451,693.31 and 141,253.97

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Solution

The fourth proportional to 301,142.96, 451,693.31 and 141,253.97 is: 211,871.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,142.96 : 451,693.31 = 141,253.97 : x
  2. Step 2: Convert to fraction form
    301,142.96/451,693.31 = 141,253.97/x
  3. Step 3: Cross multiply
    301,142.96x = 451,693.31 × 141,253.97
  4. Step 4: Simplify right side
    301,142.96x = 63,803,473,682.90
  5. Step 5: Solve for x
    x = 63,803,473,682.90/301,142.96
  6. Step 6: Final answer
    x = 211,871.05

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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.