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Finding the Fourth Proportional to 66,492.10, 99,504.11 and 41,543.90

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Solution

The fourth proportional to 66,492.10, 99,504.11 and 41,543.90 is: 62,169.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,492.10 : 99,504.11 = 41,543.90 : x
  2. Step 2: Convert to fraction form
    66,492.10/99,504.11 = 41,543.90/x
  3. Step 3: Cross multiply
    66,492.10x = 99,504.11 × 41,543.90
  4. Step 4: Simplify right side
    66,492.10x = 4,133,788,774.91
  5. Step 5: Solve for x
    x = 4,133,788,774.91/66,492.10
  6. Step 6: Final answer
    x = 62,169.62

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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.