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Finding the Fourth Proportional to 92,920.29, 139,169.62 and 59,186.49

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Solution

The fourth proportional to 92,920.29, 139,169.62 and 59,186.49 is: 88,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,920.29 : 139,169.62 = 59,186.49 : x
  2. Step 2: Convert to fraction form
    92,920.29/139,169.62 = 59,186.49/x
  3. Step 3: Cross multiply
    92,920.29x = 139,169.62 × 59,186.49
  4. Step 4: Simplify right side
    92,920.29x = 8,236,961,322.43
  5. Step 5: Solve for x
    x = 8,236,961,322.43/92,920.29
  6. Step 6: Final answer
    x = 88,645.45

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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.