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Finding the Fourth Proportional to 269,611,851.84, 372,063,238.40 and 145,852,238.40

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Solution

The fourth proportional to 269,611,851.84, 372,063,238.40 and 145,852,238.40 is: 201,275,484.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,611,851.84 : 372,063,238.40 = 145,852,238.40 : x
  2. Step 2: Convert to fraction form
    269,611,851.84/372,063,238.40 = 145,852,238.40/x
  3. Step 3: Cross multiply
    269,611,851.84x = 372,063,238.40 × 145,852,238.40
  4. Step 4: Simplify right side
    269,611,851.84x = 54,266,256,146,992,832
  5. Step 5: Solve for x
    x = 54,266,256,146,992,832/269,611,851.84
  6. Step 6: Final answer
    x = 201,275,484.65

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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.