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Finding the Fourth Proportional to 74,924.61, 112,393.40 and 30,554.43

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Solution

The fourth proportional to 74,924.61, 112,393.40 and 30,554.43 is: 45,834.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,924.61 : 112,393.40 = 30,554.43 : x
  2. Step 2: Convert to fraction form
    74,924.61/112,393.40 = 30,554.43/x
  3. Step 3: Cross multiply
    74,924.61x = 112,393.40 × 30,554.43
  4. Step 4: Simplify right side
    74,924.61x = 3,434,116,119.99
  5. Step 5: Solve for x
    x = 3,434,116,119.99/74,924.61
  6. Step 6: Final answer
    x = 45,834.29

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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.