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Finding the Fourth Proportional to 92,699.52, 139,039.68 and 26,137.92

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Solution

The fourth proportional to 92,699.52, 139,039.68 and 26,137.92 is: 39,204.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,699.52 : 139,039.68 = 26,137.92 : x
  2. Step 2: Convert to fraction form
    92,699.52/139,039.68 = 26,137.92/x
  3. Step 3: Cross multiply
    92,699.52x = 139,039.68 × 26,137.92
  4. Step 4: Simplify right side
    92,699.52x = 3,634,208,032.67
  5. Step 5: Solve for x
    x = 3,634,208,032.67/92,699.52
  6. Step 6: Final answer
    x = 39,204.17

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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.