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Finding the Fourth Proportional to 245,274.30, 367,911.45 and 127,176.30

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Solution

The fourth proportional to 245,274.30, 367,911.45 and 127,176.30 is: 190,764.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,274.30 : 367,911.45 = 127,176.30 : x
  2. Step 2: Convert to fraction form
    245,274.30/367,911.45 = 127,176.30/x
  3. Step 3: Cross multiply
    245,274.30x = 367,911.45 × 127,176.30
  4. Step 4: Simplify right side
    245,274.30x = 46,789,616,938.64
  5. Step 5: Solve for x
    x = 46,789,616,938.64/245,274.30
  6. Step 6: Final answer
    x = 190,764.45

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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.