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Finding the Fourth Proportional to 92,040.64, 138,075.54 and 29,696.56

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Solution

The fourth proportional to 92,040.64, 138,075.54 and 29,696.56 is: 44,549.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,040.64 : 138,075.54 = 29,696.56 : x
  2. Step 2: Convert to fraction form
    92,040.64/138,075.54 = 29,696.56/x
  3. Step 3: Cross multiply
    92,040.64x = 138,075.54 × 29,696.56
  4. Step 4: Simplify right side
    92,040.64x = 4,100,368,558.14
  5. Step 5: Solve for x
    x = 4,100,368,558.14/92,040.64
  6. Step 6: Final answer
    x = 44,549.54

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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.