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Finding the Fourth Proportional to 98,363.89, 147,258.78 and 73,175.14

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Solution

The fourth proportional to 98,363.89, 147,258.78 and 73,175.14 is: 109,549.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,363.89 : 147,258.78 = 73,175.14 : x
  2. Step 2: Convert to fraction form
    98,363.89/147,258.78 = 73,175.14/x
  3. Step 3: Cross multiply
    98,363.89x = 147,258.78 × 73,175.14
  4. Step 4: Simplify right side
    98,363.89x = 10,775,681,842.73
  5. Step 5: Solve for x
    x = 10,775,681,842.73/98,363.89
  6. Step 6: Final answer
    x = 109,549.16

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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.