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Finding the Fourth Proportional to 104,242.15, 143,850.31 and 56,494.47

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Solution

The fourth proportional to 104,242.15, 143,850.31 and 56,494.47 is: 77,960.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,242.15 : 143,850.31 = 56,494.47 : x
  2. Step 2: Convert to fraction form
    104,242.15/143,850.31 = 56,494.47/x
  3. Step 3: Cross multiply
    104,242.15x = 143,850.31 × 56,494.47
  4. Step 4: Simplify right side
    104,242.15x = 8,126,747,022.79
  5. Step 5: Solve for x
    x = 8,126,747,022.79/104,242.15
  6. Step 6: Final answer
    x = 77,960.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.