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Finding the Fourth Proportional to 248,137.80, 371,996.08 and 98,483.80

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Solution

The fourth proportional to 248,137.80, 371,996.08 and 98,483.80 is: 147,642.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,137.80 : 371,996.08 = 98,483.80 : x
  2. Step 2: Convert to fraction form
    248,137.80/371,996.08 = 98,483.80/x
  3. Step 3: Cross multiply
    248,137.80x = 371,996.08 × 98,483.80
  4. Step 4: Simplify right side
    248,137.80x = 36,635,587,543.50
  5. Step 5: Solve for x
    x = 36,635,587,543.50/248,137.80
  6. Step 6: Final answer
    x = 147,642.11

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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.