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Finding the Fourth Proportional to 66,184, 91,331.86 and 37,887.80

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Solution

The fourth proportional to 66,184, 91,331.86 and 37,887.80 is: 52,283.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,184 : 91,331.86 = 37,887.80 : x
  2. Step 2: Convert to fraction form
    66,184/91,331.86 = 37,887.80/x
  3. Step 3: Cross multiply
    66,184x = 91,331.86 × 37,887.80
  4. Step 4: Simplify right side
    66,184x = 3,460,363,245.31
  5. Step 5: Solve for x
    x = 3,460,363,245.31/66,184
  6. Step 6: Final answer
    x = 52,283.98

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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.