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Finding the Fourth Proportional to 92,312.82, 138,494.03 and 29,135.39

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Solution

The fourth proportional to 92,312.82, 138,494.03 and 29,135.39 is: 43,710.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,312.82 : 138,494.03 = 29,135.39 : x
  2. Step 2: Convert to fraction form
    92,312.82/138,494.03 = 29,135.39/x
  3. Step 3: Cross multiply
    92,312.82x = 138,494.03 × 29,135.39
  4. Step 4: Simplify right side
    92,312.82x = 4,035,076,738.57
  5. Step 5: Solve for x
    x = 4,035,076,738.57/92,312.82
  6. Step 6: Final answer
    x = 43,710.90

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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.