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Finding the Fourth Proportional to 226,715.52, 312,869.24 and 126,113.52

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Solution

The fourth proportional to 226,715.52, 312,869.24 and 126,113.52 is: 174,037.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,715.52 : 312,869.24 = 126,113.52 : x
  2. Step 2: Convert to fraction form
    226,715.52/312,869.24 = 126,113.52/x
  3. Step 3: Cross multiply
    226,715.52x = 312,869.24 × 126,113.52
  4. Step 4: Simplify right side
    226,715.52x = 39,457,041,156.12
  5. Step 5: Solve for x
    x = 39,457,041,156.12/226,715.52
  6. Step 6: Final answer
    x = 174,037.67

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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.