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Finding the Fourth Proportional to 202,140.56, 303,313.08 and 134,718.60

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Solution

The fourth proportional to 202,140.56, 303,313.08 and 134,718.60 is: 202,146.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,140.56 : 303,313.08 = 134,718.60 : x
  2. Step 2: Convert to fraction form
    202,140.56/303,313.08 = 134,718.60/x
  3. Step 3: Cross multiply
    202,140.56x = 303,313.08 × 134,718.60
  4. Step 4: Simplify right side
    202,140.56x = 40,861,913,499.29
  5. Step 5: Solve for x
    x = 40,861,913,499.29/202,140.56
  6. Step 6: Final answer
    x = 202,146.04

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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.