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Finding the Fourth Proportional to 74,594.52, 102,942.59 and 40,605.21

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Solution

The fourth proportional to 74,594.52, 102,942.59 and 40,605.21 is: 56,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,594.52 : 102,942.59 = 40,605.21 : x
  2. Step 2: Convert to fraction form
    74,594.52/102,942.59 = 40,605.21/x
  3. Step 3: Cross multiply
    74,594.52x = 102,942.59 × 40,605.21
  4. Step 4: Simplify right side
    74,594.52x = 4,180,005,484.89
  5. Step 5: Solve for x
    x = 4,180,005,484.89/74,594.52
  6. Step 6: Final answer
    x = 56,036.36

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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.