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Finding the Fourth Proportional to 93,294.72, 139,844.88 and 40,690.08

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Solution

The fourth proportional to 93,294.72, 139,844.88 and 40,690.08 is: 60,992.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,294.72 : 139,844.88 = 40,690.08 : x
  2. Step 2: Convert to fraction form
    93,294.72/139,844.88 = 40,690.08/x
  3. Step 3: Cross multiply
    93,294.72x = 139,844.88 × 40,690.08
  4. Step 4: Simplify right side
    93,294.72x = 5,690,299,354.79
  5. Step 5: Solve for x
    x = 5,690,299,354.79/93,294.72
  6. Step 6: Final answer
    x = 60,992.73

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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.