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Finding the Fourth Proportional to 98,291.75, 147,216.03 and 68,841.02

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Solution

The fourth proportional to 98,291.75, 147,216.03 and 68,841.02 is: 103,106.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,291.75 : 147,216.03 = 68,841.02 : x
  2. Step 2: Convert to fraction form
    98,291.75/147,216.03 = 68,841.02/x
  3. Step 3: Cross multiply
    98,291.75x = 147,216.03 × 68,841.02
  4. Step 4: Simplify right side
    98,291.75x = 10,134,500,929.47
  5. Step 5: Solve for x
    x = 10,134,500,929.47/98,291.75
  6. Step 6: Final answer
    x = 103,106.33

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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.