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Finding the Fourth Proportional to 74,163,957.60, 111,293,175.60 and 43,458,477.60

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Solution

The fourth proportional to 74,163,957.60, 111,293,175.60 and 43,458,477.60 is: 65,215,397.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,163,957.60 : 111,293,175.60 = 43,458,477.60 : x
  2. Step 2: Convert to fraction form
    74,163,957.60/111,293,175.60 = 43,458,477.60/x
  3. Step 3: Cross multiply
    74,163,957.60x = 111,293,175.60 × 43,458,477.60
  4. Step 4: Simplify right side
    74,163,957.60x = 4,836,631,978,845,466
  5. Step 5: Solve for x
    x = 4,836,631,978,845,466/74,163,957.60
  6. Step 6: Final answer
    x = 65,215,397.55

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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.