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Finding the Fourth Proportional to 92,974, 139,462.74 and 26,414.40

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Solution

The fourth proportional to 92,974, 139,462.74 and 26,414.40 is: 39,622.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,974 : 139,462.74 = 26,414.40 : x
  2. Step 2: Convert to fraction form
    92,974/139,462.74 = 26,414.40/x
  3. Step 3: Cross multiply
    92,974x = 139,462.74 × 26,414.40
  4. Step 4: Simplify right side
    92,974x = 3,683,824,599.46
  5. Step 5: Solve for x
    x = 3,683,824,599.46/92,974
  6. Step 6: Final answer
    x = 39,622.09

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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.