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Finding the Fourth Proportional to 61,142.32, 91,483.53 and 36,194.11

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Solution

The fourth proportional to 61,142.32, 91,483.53 and 36,194.11 is: 54,155.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,142.32 : 91,483.53 = 36,194.11 : x
  2. Step 2: Convert to fraction form
    61,142.32/91,483.53 = 36,194.11/x
  3. Step 3: Cross multiply
    61,142.32x = 91,483.53 × 36,194.11
  4. Step 4: Simplify right side
    61,142.32x = 3,311,164,948.01
  5. Step 5: Solve for x
    x = 3,311,164,948.01/61,142.32
  6. Step 6: Final answer
    x = 54,155.04

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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.