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Finding the Fourth Proportional to 74,953.50, 112,436.73 and 19,549.50

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Solution

The fourth proportional to 74,953.50, 112,436.73 and 19,549.50 is: 29,325.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,953.50 : 112,436.73 = 19,549.50 : x
  2. Step 2: Convert to fraction form
    74,953.50/112,436.73 = 19,549.50/x
  3. Step 3: Cross multiply
    74,953.50x = 112,436.73 × 19,549.50
  4. Step 4: Simplify right side
    74,953.50x = 2,198,081,853.14
  5. Step 5: Solve for x
    x = 2,198,081,853.14/74,953.50
  6. Step 6: Final answer
    x = 29,325.94

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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.