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Finding the Fourth Proportional to 248,113.80, 372,267.90 and 98,328.60

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Solution

The fourth proportional to 248,113.80, 372,267.90 and 98,328.60 is: 147,531.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,113.80 : 372,267.90 = 98,328.60 : x
  2. Step 2: Convert to fraction form
    248,113.80/372,267.90 = 98,328.60/x
  3. Step 3: Cross multiply
    248,113.80x = 372,267.90 × 98,328.60
  4. Step 4: Simplify right side
    248,113.80x = 36,604,581,431.94
  5. Step 5: Solve for x
    x = 36,604,581,431.94/248,113.80
  6. Step 6: Final answer
    x = 147,531.42

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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.