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Finding the Fourth Proportional to 274,295,251.22, 411,483,030.24 and 128,743,597.22

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Solution

The fourth proportional to 274,295,251.22, 411,483,030.24 and 128,743,597.22 is: 193,134,242.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,295,251.22 : 411,483,030.24 = 128,743,597.22 : x
  2. Step 2: Convert to fraction form
    274,295,251.22/411,483,030.24 = 128,743,597.22/x
  3. Step 3: Cross multiply
    274,295,251.22x = 411,483,030.24 × 128,743,597.22
  4. Step 4: Simplify right side
    274,295,251.22x = 52,975,805,508,083,640
  5. Step 5: Solve for x
    x = 52,975,805,508,083,640/274,295,251.22
  6. Step 6: Final answer
    x = 193,134,242.29

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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.