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Finding the Fourth Proportional to 293,966,679.76, 405,670,798.76 and 161,804,850.64

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Solution

The fourth proportional to 293,966,679.76, 405,670,798.76 and 161,804,850.64 is: 223,288,921.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,966,679.76 : 405,670,798.76 = 161,804,850.64 : x
  2. Step 2: Convert to fraction form
    293,966,679.76/405,670,798.76 = 161,804,850.64/x
  3. Step 3: Cross multiply
    293,966,679.76x = 405,670,798.76 × 161,804,850.64
  4. Step 4: Simplify right side
    293,966,679.76x = 65,639,503,002,371,288
  5. Step 5: Solve for x
    x = 65,639,503,002,371,288/293,966,679.76
  6. Step 6: Final answer
    x = 223,288,921.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.