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Finding the Fourth Proportional to 61,831,355.45, 86,450,523.55 and 61,831,355.45

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Solution

The fourth proportional to 61,831,355.45, 86,450,523.55 and 61,831,355.45 is: 86,450,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,831,355.45 : 86,450,523.55 = 61,831,355.45 : x
  2. Step 2: Convert to fraction form
    61,831,355.45/86,450,523.55 = 61,831,355.45/x
  3. Step 3: Cross multiply
    61,831,355.45x = 86,450,523.55 × 61,831,355.45
  4. Step 4: Simplify right side
    61,831,355.45x = 5,345,353,050,458,646
  5. Step 5: Solve for x
    x = 5,345,353,050,458,646/61,831,355.45
  6. Step 6: Final answer
    x = 86,450,523.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.