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Finding the Fourth Proportional to 99,944.01, 137,922.44 and 54,622.01

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Solution

The fourth proportional to 99,944.01, 137,922.44 and 54,622.01 is: 75,378.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,944.01 : 137,922.44 = 54,622.01 : x
  2. Step 2: Convert to fraction form
    99,944.01/137,922.44 = 54,622.01/x
  3. Step 3: Cross multiply
    99,944.01x = 137,922.44 × 54,622.01
  4. Step 4: Simplify right side
    99,944.01x = 7,533,600,968.60
  5. Step 5: Solve for x
    x = 7,533,600,968.60/99,944.01
  6. Step 6: Final answer
    x = 75,378.21

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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.