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Finding the Fourth Proportional to 74,570.91, 102,907.87 and 41,036.91

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Solution

The fourth proportional to 74,570.91, 102,907.87 and 41,036.91 is: 56,630.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,570.91 : 102,907.87 = 41,036.91 : x
  2. Step 2: Convert to fraction form
    74,570.91/102,907.87 = 41,036.91/x
  3. Step 3: Cross multiply
    74,570.91x = 102,907.87 × 41,036.91
  4. Step 4: Simplify right side
    74,570.91x = 4,223,020,896.89
  5. Step 5: Solve for x
    x = 4,223,020,896.89/74,570.91
  6. Step 6: Final answer
    x = 56,630.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.