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Finding the Fourth Proportional to 73,403.10, 109,813.05 and 63,650.70

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Solution

The fourth proportional to 73,403.10, 109,813.05 and 63,650.70 is: 95,223.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,403.10 : 109,813.05 = 63,650.70 : x
  2. Step 2: Convert to fraction form
    73,403.10/109,813.05 = 63,650.70/x
  3. Step 3: Cross multiply
    73,403.10x = 109,813.05 × 63,650.70
  4. Step 4: Simplify right side
    73,403.10x = 6,989,677,501.64
  5. Step 5: Solve for x
    x = 6,989,677,501.64/73,403.10
  6. Step 6: Final answer
    x = 95,223.19

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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.