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Finding the Fourth Proportional to 92,648.63, 139,158.90 and 55,281.62

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Solution

The fourth proportional to 92,648.63, 139,158.90 and 55,281.62 is: 83,033.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,648.63 : 139,158.90 = 55,281.62 : x
  2. Step 2: Convert to fraction form
    92,648.63/139,158.90 = 55,281.62/x
  3. Step 3: Cross multiply
    92,648.63x = 139,158.90 × 55,281.62
  4. Step 4: Simplify right side
    92,648.63x = 7,692,928,733.62
  5. Step 5: Solve for x
    x = 7,692,928,733.62/92,648.63
  6. Step 6: Final answer
    x = 83,033.38

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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.