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Finding the Fourth Proportional to 66,701.37, 99,940.98 and 46,938.42

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Solution

The fourth proportional to 66,701.37, 99,940.98 and 46,938.42 is: 70,329.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,701.37 : 99,940.98 = 46,938.42 : x
  2. Step 2: Convert to fraction form
    66,701.37/99,940.98 = 46,938.42/x
  3. Step 3: Cross multiply
    66,701.37x = 99,940.98 × 46,938.42
  4. Step 4: Simplify right side
    66,701.37x = 4,691,071,694.45
  5. Step 5: Solve for x
    x = 4,691,071,694.45/66,701.37
  6. Step 6: Final answer
    x = 70,329.47

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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.