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Finding the Fourth Proportional to 66,959.66, 92,400.54 and 40,096.01

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Solution

The fourth proportional to 66,959.66, 92,400.54 and 40,096.01 is: 55,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,959.66 : 92,400.54 = 40,096.01 : x
  2. Step 2: Convert to fraction form
    66,959.66/92,400.54 = 40,096.01/x
  3. Step 3: Cross multiply
    66,959.66x = 92,400.54 × 40,096.01
  4. Step 4: Simplify right side
    66,959.66x = 3,704,892,975.85
  5. Step 5: Solve for x
    x = 3,704,892,975.85/66,959.66
  6. Step 6: Final answer
    x = 55,330.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.