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Finding the Fourth Proportional to 85,003,762.85, 119,232,016.15 and 85,003,762.85

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Solution

The fourth proportional to 85,003,762.85, 119,232,016.15 and 85,003,762.85 is: 119,232,016.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,003,762.85 : 119,232,016.15 = 85,003,762.85 : x
  2. Step 2: Convert to fraction form
    85,003,762.85/119,232,016.15 = 85,003,762.85/x
  3. Step 3: Cross multiply
    85,003,762.85x = 119,232,016.15 × 85,003,762.85
  4. Step 4: Simplify right side
    85,003,762.85x = 10,135,170,024,941,970
  5. Step 5: Solve for x
    x = 10,135,170,024,941,970/85,003,762.85
  6. Step 6: Final answer
    x = 119,232,016.15

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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.