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Finding the Fourth Proportional to 136,652.49, 205,024.10 and 92,160.81

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Solution

The fourth proportional to 136,652.49, 205,024.10 and 92,160.81 is: 138,271.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,652.49 : 205,024.10 = 92,160.81 : x
  2. Step 2: Convert to fraction form
    136,652.49/205,024.10 = 92,160.81/x
  3. Step 3: Cross multiply
    136,652.49x = 205,024.10 × 92,160.81
  4. Step 4: Simplify right side
    136,652.49x = 18,895,186,664.72
  5. Step 5: Solve for x
    x = 18,895,186,664.72/136,652.49
  6. Step 6: Final answer
    x = 138,271.81

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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.