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Finding the Fourth Proportional to 248,055.89, 371,865.38 and 98,401.28

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Solution

The fourth proportional to 248,055.89, 371,865.38 and 98,401.28 is: 147,515.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,055.89 : 371,865.38 = 98,401.28 : x
  2. Step 2: Convert to fraction form
    248,055.89/371,865.38 = 98,401.28/x
  3. Step 3: Cross multiply
    248,055.89x = 371,865.38 × 98,401.28
  4. Step 4: Simplify right side
    248,055.89x = 36,592,027,028.35
  5. Step 5: Solve for x
    x = 36,592,027,028.35/248,055.89
  6. Step 6: Final answer
    x = 147,515.25

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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.