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Finding the Fourth Proportional to 66,669.67, 92,005.13 and 45,165.99

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Solution

The fourth proportional to 66,669.67, 92,005.13 and 45,165.99 is: 62,329.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,669.67 : 92,005.13 = 45,165.99 : x
  2. Step 2: Convert to fraction form
    66,669.67/92,005.13 = 45,165.99/x
  3. Step 3: Cross multiply
    66,669.67x = 92,005.13 × 45,165.99
  4. Step 4: Simplify right side
    66,669.67x = 4,155,502,781.53
  5. Step 5: Solve for x
    x = 4,155,502,781.53/66,669.67
  6. Step 6: Final answer
    x = 62,329.73

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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.