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Finding the Fourth Proportional to 245,673.14, 367,919.16 and 140,172.26

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Solution

The fourth proportional to 245,673.14, 367,919.16 and 140,172.26 is: 209,921.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,673.14 : 367,919.16 = 140,172.26 : x
  2. Step 2: Convert to fraction form
    245,673.14/367,919.16 = 140,172.26/x
  3. Step 3: Cross multiply
    245,673.14x = 367,919.16 × 140,172.26
  4. Step 4: Simplify right side
    245,673.14x = 51,572,060,154.50
  5. Step 5: Solve for x
    x = 51,572,060,154.50/245,673.14
  6. Step 6: Final answer
    x = 209,921.44

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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.