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Finding the Fourth Proportional to 61,893,523.86, 85,414,985.57 and 34,015,728.24

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Solution

The fourth proportional to 61,893,523.86, 85,414,985.57 and 34,015,728.24 is: 46,942,761.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,893,523.86 : 85,414,985.57 = 34,015,728.24 : x
  2. Step 2: Convert to fraction form
    61,893,523.86/85,414,985.57 = 34,015,728.24/x
  3. Step 3: Cross multiply
    61,893,523.86x = 85,414,985.57 × 34,015,728.24
  4. Step 4: Simplify right side
    61,893,523.86x = 2,905,452,936,772,641.50
  5. Step 5: Solve for x
    x = 2,905,452,936,772,641.50/61,893,523.86
  6. Step 6: Final answer
    x = 46,942,761.63

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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.