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Finding the Fourth Proportional to 71,609,109.60, 107,413,664.40 and 26,203,490.40

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Solution

The fourth proportional to 71,609,109.60, 107,413,664.40 and 26,203,490.40 is: 39,305,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,609,109.60 : 107,413,664.40 = 26,203,490.40 : x
  2. Step 2: Convert to fraction form
    71,609,109.60/107,413,664.40 = 26,203,490.40/x
  3. Step 3: Cross multiply
    71,609,109.60x = 107,413,664.40 × 26,203,490.40
  4. Step 4: Simplify right side
    71,609,109.60x = 2,814,612,923,934,222
  5. Step 5: Solve for x
    x = 2,814,612,923,934,222/71,609,109.60
  6. Step 6: Final answer
    x = 39,305,235.60

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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.