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Finding the Fourth Proportional to 143,700.48, 215,466.12 and 54,960.48

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Solution

The fourth proportional to 143,700.48, 215,466.12 and 54,960.48 is: 82,408.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,700.48 : 215,466.12 = 54,960.48 : x
  2. Step 2: Convert to fraction form
    143,700.48/215,466.12 = 54,960.48/x
  3. Step 3: Cross multiply
    143,700.48x = 215,466.12 × 54,960.48
  4. Step 4: Simplify right side
    143,700.48x = 11,842,121,378.94
  5. Step 5: Solve for x
    x = 11,842,121,378.94/143,700.48
  6. Step 6: Final answer
    x = 82,408.36

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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.