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Finding the Fourth Proportional to 92,813.60, 139,226.02 and 26,258.78

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Solution

The fourth proportional to 92,813.60, 139,226.02 and 26,258.78 is: 39,389.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,813.60 : 139,226.02 = 26,258.78 : x
  2. Step 2: Convert to fraction form
    92,813.60/139,226.02 = 26,258.78/x
  3. Step 3: Cross multiply
    92,813.60x = 139,226.02 × 26,258.78
  4. Step 4: Simplify right side
    92,813.60x = 3,655,905,429.46
  5. Step 5: Solve for x
    x = 3,655,905,429.46/92,813.60
  6. Step 6: Final answer
    x = 39,389.76

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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.