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Finding the Fourth Proportional to 98,121.70, 147,204.48 and 35,792.20

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Solution

The fourth proportional to 98,121.70, 147,204.48 and 35,792.20 is: 53,696.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,121.70 : 147,204.48 = 35,792.20 : x
  2. Step 2: Convert to fraction form
    98,121.70/147,204.48 = 35,792.20/x
  3. Step 3: Cross multiply
    98,121.70x = 147,204.48 × 35,792.20
  4. Step 4: Simplify right side
    98,121.70x = 5,268,772,189.06
  5. Step 5: Solve for x
    x = 5,268,772,189.06/98,121.70
  6. Step 6: Final answer
    x = 53,696.30

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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.