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Finding the Fourth Proportional to 147,715.62, 203,846.48 and 80,647.62

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Solution

The fourth proportional to 147,715.62, 203,846.48 and 80,647.62 is: 111,293.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,715.62 : 203,846.48 = 80,647.62 : x
  2. Step 2: Convert to fraction form
    147,715.62/203,846.48 = 80,647.62/x
  3. Step 3: Cross multiply
    147,715.62x = 203,846.48 × 80,647.62
  4. Step 4: Simplify right side
    147,715.62x = 16,439,733,457.38
  5. Step 5: Solve for x
    x = 16,439,733,457.38/147,715.62
  6. Step 6: Final answer
    x = 111,293.13

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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.