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Finding the Fourth Proportional to 66,999.29, 100,368.27 and 37,327.77

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Solution

The fourth proportional to 66,999.29, 100,368.27 and 37,327.77 is: 55,918.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,999.29 : 100,368.27 = 37,327.77 : x
  2. Step 2: Convert to fraction form
    66,999.29/100,368.27 = 37,327.77/x
  3. Step 3: Cross multiply
    66,999.29x = 100,368.27 × 37,327.77
  4. Step 4: Simplify right side
    66,999.29x = 3,746,523,697.86
  5. Step 5: Solve for x
    x = 3,746,523,697.86/66,999.29
  6. Step 6: Final answer
    x = 55,918.86

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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.