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Finding the Fourth Proportional to 125,602.98, 173,213.10 and 82,506.66

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Solution

The fourth proportional to 125,602.98, 173,213.10 and 82,506.66 is: 113,781.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,602.98 : 173,213.10 = 82,506.66 : x
  2. Step 2: Convert to fraction form
    125,602.98/173,213.10 = 82,506.66/x
  3. Step 3: Cross multiply
    125,602.98x = 173,213.10 × 82,506.66
  4. Step 4: Simplify right side
    125,602.98x = 14,291,234,349.25
  5. Step 5: Solve for x
    x = 14,291,234,349.25/125,602.98
  6. Step 6: Final answer
    x = 113,781.01

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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.