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Finding the Fourth Proportional to 308,093,797.17, 425,169,803.52 and 166,965,016.82

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Solution

The fourth proportional to 308,093,797.17, 425,169,803.52 and 166,965,016.82 is: 230,411,920.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,093,797.17 : 425,169,803.52 = 166,965,016.82 : x
  2. Step 2: Convert to fraction form
    308,093,797.17/425,169,803.52 = 166,965,016.82/x
  3. Step 3: Cross multiply
    308,093,797.17x = 425,169,803.52 × 166,965,016.82
  4. Step 4: Simplify right side
    308,093,797.17x = 70,988,483,393,947,040
  5. Step 5: Solve for x
    x = 70,988,483,393,947,040/308,093,797.17
  6. Step 6: Final answer
    x = 230,411,920.16

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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.