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Finding the Fourth Proportional to 98,284.68, 147,425.40 and 28,162.44

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Solution

The fourth proportional to 98,284.68, 147,425.40 and 28,162.44 is: 42,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,284.68 : 147,425.40 = 28,162.44 : x
  2. Step 2: Convert to fraction form
    98,284.68/147,425.40 = 28,162.44/x
  3. Step 3: Cross multiply
    98,284.68x = 147,425.40 × 28,162.44
  4. Step 4: Simplify right side
    98,284.68x = 4,151,858,981.98
  5. Step 5: Solve for x
    x = 4,151,858,981.98/98,284.68
  6. Step 6: Final answer
    x = 42,243.20

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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.