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Finding the Fourth Proportional to 88,443, 122,051.34 and 48,699

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Solution

The fourth proportional to 88,443, 122,051.34 and 48,699 is: 67,204.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,443 : 122,051.34 = 48,699 : x
  2. Step 2: Convert to fraction form
    88,443/122,051.34 = 48,699/x
  3. Step 3: Cross multiply
    88,443x = 122,051.34 × 48,699
  4. Step 4: Simplify right side
    88,443x = 5,943,778,206.66
  5. Step 5: Solve for x
    x = 5,943,778,206.66/88,443
  6. Step 6: Final answer
    x = 67,204.62

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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.