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Finding the Fourth Proportional to 74,642.41, 102,998.91 and 45,957.52

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Solution

The fourth proportional to 74,642.41, 102,998.91 and 45,957.52 is: 63,416.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,642.41 : 102,998.91 = 45,957.52 : x
  2. Step 2: Convert to fraction form
    74,642.41/102,998.91 = 45,957.52/x
  3. Step 3: Cross multiply
    74,642.41x = 102,998.91 × 45,957.52
  4. Step 4: Simplify right side
    74,642.41x = 4,733,574,466.30
  5. Step 5: Solve for x
    x = 4,733,574,466.30/74,642.41
  6. Step 6: Final answer
    x = 63,416.69

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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.