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Finding the Fourth Proportional to 231,777.80, 347,705.10 and 98,721.80

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Solution

The fourth proportional to 231,777.80, 347,705.10 and 98,721.80 is: 148,099.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,777.80 : 347,705.10 = 98,721.80 : x
  2. Step 2: Convert to fraction form
    231,777.80/347,705.10 = 98,721.80/x
  3. Step 3: Cross multiply
    231,777.80x = 347,705.10 × 98,721.80
  4. Step 4: Simplify right side
    231,777.80x = 34,326,073,341.18
  5. Step 5: Solve for x
    x = 34,326,073,341.18/231,777.80
  6. Step 6: Final answer
    x = 148,099.06

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1.5x scale

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.