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Finding the Fourth Proportional to 75,368.10, 112,922.55 and 49,059.30

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Solution

The fourth proportional to 75,368.10, 112,922.55 and 49,059.30 is: 73,504.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,368.10 : 112,922.55 = 49,059.30 : x
  2. Step 2: Convert to fraction form
    75,368.10/112,922.55 = 49,059.30/x
  3. Step 3: Cross multiply
    75,368.10x = 112,922.55 × 49,059.30
  4. Step 4: Simplify right side
    75,368.10x = 5,539,901,257.22
  5. Step 5: Solve for x
    x = 5,539,901,257.22/75,368.10
  6. Step 6: Final answer
    x = 73,504.59

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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.