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Finding the Fourth Proportional to 99,812.40, 149,718.60 and 29,682.60

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Solution

The fourth proportional to 99,812.40, 149,718.60 and 29,682.60 is: 44,523.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,812.40 : 149,718.60 = 29,682.60 : x
  2. Step 2: Convert to fraction form
    99,812.40/149,718.60 = 29,682.60/x
  3. Step 3: Cross multiply
    99,812.40x = 149,718.60 × 29,682.60
  4. Step 4: Simplify right side
    99,812.40x = 4,444,037,316.36
  5. Step 5: Solve for x
    x = 4,444,037,316.36/99,812.40
  6. Step 6: Final answer
    x = 44,523.90

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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.