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Finding the Fourth Proportional to 63,893,791.80, 95,775,369.30 and 31,495,865.40

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Solution

The fourth proportional to 63,893,791.80, 95,775,369.30 and 31,495,865.40 is: 47,211,599.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,893,791.80 : 95,775,369.30 = 31,495,865.40 : x
  2. Step 2: Convert to fraction form
    63,893,791.80/95,775,369.30 = 31,495,865.40/x
  3. Step 3: Cross multiply
    63,893,791.80x = 95,775,369.30 × 31,495,865.40
  4. Step 4: Simplify right side
    63,893,791.80x = 3,016,528,140,108,092
  5. Step 5: Solve for x
    x = 3,016,528,140,108,092/63,893,791.80
  6. Step 6: Final answer
    x = 47,211,599.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.