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Finding the Fourth Proportional to 202,037.20, 302,472.60 and 178,709.20

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Solution

The fourth proportional to 202,037.20, 302,472.60 and 178,709.20 is: 267,547.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,037.20 : 302,472.60 = 178,709.20 : x
  2. Step 2: Convert to fraction form
    202,037.20/302,472.60 = 178,709.20/x
  3. Step 3: Cross multiply
    202,037.20x = 302,472.60 × 178,709.20
  4. Step 4: Simplify right side
    202,037.20x = 54,054,636,367.92
  5. Step 5: Solve for x
    x = 54,054,636,367.92/202,037.20
  6. Step 6: Final answer
    x = 267,547.94

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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.