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Finding the Fourth Proportional to 68,075.56, 101,894.31 and 36,406.39

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Solution

The fourth proportional to 68,075.56, 101,894.31 and 36,406.39 is: 54,492.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,075.56 : 101,894.31 = 36,406.39 : x
  2. Step 2: Convert to fraction form
    68,075.56/101,894.31 = 36,406.39/x
  3. Step 3: Cross multiply
    68,075.56x = 101,894.31 × 36,406.39
  4. Step 4: Simplify right side
    68,075.56x = 3,709,603,988.64
  5. Step 5: Solve for x
    x = 3,709,603,988.64/68,075.56
  6. Step 6: Final answer
    x = 54,492.45

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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.