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Finding the Fourth Proportional to 56,804,463.80, 85,206,695.70 and 47,734,537.40

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Solution

The fourth proportional to 56,804,463.80, 85,206,695.70 and 47,734,537.40 is: 71,601,806.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,804,463.80 : 85,206,695.70 = 47,734,537.40 : x
  2. Step 2: Convert to fraction form
    56,804,463.80/85,206,695.70 = 47,734,537.40/x
  3. Step 3: Cross multiply
    56,804,463.80x = 85,206,695.70 × 47,734,537.40
  4. Step 4: Simplify right side
    56,804,463.80x = 4,067,302,202,622,069
  5. Step 5: Solve for x
    x = 4,067,302,202,622,069/56,804,463.80
  6. Step 6: Final answer
    x = 71,601,806.10

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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.