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Finding the Fourth Proportional to 98,175.88, 147,268.68 and 28,065.52

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Solution

The fourth proportional to 98,175.88, 147,268.68 and 28,065.52 is: 42,099.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,175.88 : 147,268.68 = 28,065.52 : x
  2. Step 2: Convert to fraction form
    98,175.88/147,268.68 = 28,065.52/x
  3. Step 3: Cross multiply
    98,175.88x = 147,268.68 × 28,065.52
  4. Step 4: Simplify right side
    98,175.88x = 4,133,172,083.91
  5. Step 5: Solve for x
    x = 4,133,172,083.91/98,175.88
  6. Step 6: Final answer
    x = 42,099.67

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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.