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Finding the Fourth Proportional to 85,003,791.60, 119,232,056.40 and 85,003,791.60

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Solution

The fourth proportional to 85,003,791.60, 119,232,056.40 and 85,003,791.60 is: 119,232,056.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,003,791.60 : 119,232,056.40 = 85,003,791.60 : x
  2. Step 2: Convert to fraction form
    85,003,791.60/119,232,056.40 = 85,003,791.60/x
  3. Step 3: Cross multiply
    85,003,791.60x = 119,232,056.40 × 85,003,791.60
  4. Step 4: Simplify right side
    85,003,791.60x = 10,135,176,874,265,046
  5. Step 5: Solve for x
    x = 10,135,176,874,265,046/85,003,791.60
  6. Step 6: Final answer
    x = 119,232,056.40

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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.