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Finding the Fourth Proportional to 94,697.72, 141,911.24 and 69,540.40

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Solution

The fourth proportional to 94,697.72, 141,911.24 and 69,540.40 is: 104,211.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,697.72 : 141,911.24 = 69,540.40 : x
  2. Step 2: Convert to fraction form
    94,697.72/141,911.24 = 69,540.40/x
  3. Step 3: Cross multiply
    94,697.72x = 141,911.24 × 69,540.40
  4. Step 4: Simplify right side
    94,697.72x = 9,868,564,394.10
  5. Step 5: Solve for x
    x = 9,868,564,394.10/94,697.72
  6. Step 6: Final answer
    x = 104,211.21

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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.