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Finding the Fourth Proportional to 71,272,906.89, 98,356,611.48 and 38,677,858.89

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Solution

The fourth proportional to 71,272,906.89, 98,356,611.48 and 38,677,858.89 is: 53,375,445.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,272,906.89 : 98,356,611.48 = 38,677,858.89 : x
  2. Step 2: Convert to fraction form
    71,272,906.89/98,356,611.48 = 38,677,858.89/x
  3. Step 3: Cross multiply
    71,272,906.89x = 98,356,611.48 × 38,677,858.89
  4. Step 4: Simplify right side
    71,272,906.89x = 3,804,223,139,721,994.50
  5. Step 5: Solve for x
    x = 3,804,223,139,721,994.50/71,272,906.89
  6. Step 6: Final answer
    x = 53,375,445.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.