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Finding the Fourth Proportional to 68,793,390.72, 94,932,032.40 and 37,431,568.80

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Solution

The fourth proportional to 68,793,390.72, 94,932,032.40 and 37,431,568.80 is: 51,654,015.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,793,390.72 : 94,932,032.40 = 37,431,568.80 : x
  2. Step 2: Convert to fraction form
    68,793,390.72/94,932,032.40 = 37,431,568.80/x
  3. Step 3: Cross multiply
    68,793,390.72x = 94,932,032.40 × 37,431,568.80
  4. Step 4: Simplify right side
    68,793,390.72x = 3,553,454,902,104,429
  5. Step 5: Solve for x
    x = 3,553,454,902,104,429/68,793,390.72
  6. Step 6: Final answer
    x = 51,654,015.96

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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.