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Finding the Fourth Proportional to 66,151.64, 99,243.66 and 32,887.38

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Solution

The fourth proportional to 66,151.64, 99,243.66 and 32,887.38 is: 49,339.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,151.64 : 99,243.66 = 32,887.38 : x
  2. Step 2: Convert to fraction form
    66,151.64/99,243.66 = 32,887.38/x
  3. Step 3: Cross multiply
    66,151.64x = 99,243.66 × 32,887.38
  4. Step 4: Simplify right side
    66,151.64x = 3,263,863,959.01
  5. Step 5: Solve for x
    x = 3,263,863,959.01/66,151.64
  6. Step 6: Final answer
    x = 49,339.12

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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.