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Finding the Fourth Proportional to 66,909.50, 92,335.11 and 37,101.50

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Solution

The fourth proportional to 66,909.50, 92,335.11 and 37,101.50 is: 51,200.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,909.50 : 92,335.11 = 37,101.50 : x
  2. Step 2: Convert to fraction form
    66,909.50/92,335.11 = 37,101.50/x
  3. Step 3: Cross multiply
    66,909.50x = 92,335.11 × 37,101.50
  4. Step 4: Simplify right side
    66,909.50x = 3,425,771,083.67
  5. Step 5: Solve for x
    x = 3,425,771,083.67/66,909.50
  6. Step 6: Final answer
    x = 51,200.07

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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.