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Finding the Fourth Proportional to 66,968.40, 92,420.66 and 44,267.56

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Solution

The fourth proportional to 66,968.40, 92,420.66 and 44,267.56 is: 61,092.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,968.40 : 92,420.66 = 44,267.56 : x
  2. Step 2: Convert to fraction form
    66,968.40/92,420.66 = 44,267.56/x
  3. Step 3: Cross multiply
    66,968.40x = 92,420.66 × 44,267.56
  4. Step 4: Simplify right side
    66,968.40x = 4,091,237,111.79
  5. Step 5: Solve for x
    x = 4,091,237,111.79/66,968.40
  6. Step 6: Final answer
    x = 61,092.05

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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.