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Finding the Fourth Proportional to 72,744.84, 100,355.22 and 44,445.24

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Solution

The fourth proportional to 72,744.84, 100,355.22 and 44,445.24 is: 61,314.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,744.84 : 100,355.22 = 44,445.24 : x
  2. Step 2: Convert to fraction form
    72,744.84/100,355.22 = 44,445.24/x
  3. Step 3: Cross multiply
    72,744.84x = 100,355.22 × 44,445.24
  4. Step 4: Simplify right side
    72,744.84x = 4,460,311,838.15
  5. Step 5: Solve for x
    x = 4,460,311,838.15/72,744.84
  6. Step 6: Final answer
    x = 61,314.48

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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.