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Finding the Fourth Proportional to 245,300.70, 367,659.45 and 103,145.70

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Solution

The fourth proportional to 245,300.70, 367,659.45 and 103,145.70 is: 154,595.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,300.70 : 367,659.45 = 103,145.70 : x
  2. Step 2: Convert to fraction form
    245,300.70/367,659.45 = 103,145.70/x
  3. Step 3: Cross multiply
    245,300.70x = 367,659.45 × 103,145.70
  4. Step 4: Simplify right side
    245,300.70x = 37,922,491,331.87
  5. Step 5: Solve for x
    x = 37,922,491,331.87/245,300.70
  6. Step 6: Final answer
    x = 154,595.94

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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.