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Finding the Fourth Proportional to 141,203.86, 211,846.79 and 56,920.53

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Solution

The fourth proportional to 141,203.86, 211,846.79 and 56,920.53 is: 85,397.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,203.86 : 211,846.79 = 56,920.53 : x
  2. Step 2: Convert to fraction form
    141,203.86/211,846.79 = 56,920.53/x
  3. Step 3: Cross multiply
    141,203.86x = 211,846.79 × 56,920.53
  4. Step 4: Simplify right side
    141,203.86x = 12,058,430,221.76
  5. Step 5: Solve for x
    x = 12,058,430,221.76/141,203.86
  6. Step 6: Final answer
    x = 85,397.31

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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.