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Finding the Fourth Proportional to 73,445.75, 101,355.18 and 39,911.75

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Solution

The fourth proportional to 73,445.75, 101,355.18 and 39,911.75 is: 55,078.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,445.75 : 101,355.18 = 39,911.75 : x
  2. Step 2: Convert to fraction form
    73,445.75/101,355.18 = 39,911.75/x
  3. Step 3: Cross multiply
    73,445.75x = 101,355.18 × 39,911.75
  4. Step 4: Simplify right side
    73,445.75x = 4,045,262,605.37
  5. Step 5: Solve for x
    x = 4,045,262,605.37/73,445.75
  6. Step 6: Final answer
    x = 55,078.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.