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Finding the Fourth Proportional to 74,747,912.80, 112,027,390.80 and 36,326,696.80

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Solution

The fourth proportional to 74,747,912.80, 112,027,390.80 and 36,326,696.80 is: 54,444,129.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,747,912.80 : 112,027,390.80 = 36,326,696.80 : x
  2. Step 2: Convert to fraction form
    74,747,912.80/112,027,390.80 = 36,326,696.80/x
  3. Step 3: Cross multiply
    74,747,912.80x = 112,027,390.80 × 36,326,696.80
  4. Step 4: Simplify right side
    74,747,912.80x = 4,069,585,058,886,709
  5. Step 5: Solve for x
    x = 4,069,585,058,886,709/74,747,912.80
  6. Step 6: Final answer
    x = 54,444,129.69

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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.