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Finding the Fourth Proportional to 66,778.63, 92,151.63 and 36,563.40

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Solution

The fourth proportional to 66,778.63, 92,151.63 and 36,563.40 is: 50,455.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,778.63 : 92,151.63 = 36,563.40 : x
  2. Step 2: Convert to fraction form
    66,778.63/92,151.63 = 36,563.40/x
  3. Step 3: Cross multiply
    66,778.63x = 92,151.63 × 36,563.40
  4. Step 4: Simplify right side
    66,778.63x = 3,369,376,908.34
  5. Step 5: Solve for x
    x = 3,369,376,908.34/66,778.63
  6. Step 6: Final answer
    x = 50,455.92

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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.