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Finding the Fourth Proportional to 93,603.66, 140,418.69 and 30,403.55

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Solution

The fourth proportional to 93,603.66, 140,418.69 and 30,403.55 is: 45,609.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,603.66 : 140,418.69 = 30,403.55 : x
  2. Step 2: Convert to fraction form
    93,603.66/140,418.69 = 30,403.55/x
  3. Step 3: Cross multiply
    93,603.66x = 140,418.69 × 30,403.55
  4. Step 4: Simplify right side
    93,603.66x = 4,269,226,662.35
  5. Step 5: Solve for x
    x = 4,269,226,662.35/93,603.66
  6. Step 6: Final answer
    x = 45,609.61

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1.5x scale

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.