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Finding the Fourth Proportional to 243,777.16, 365,600.22 and 85,984.84

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Solution

The fourth proportional to 243,777.16, 365,600.22 and 85,984.84 is: 128,954.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,777.16 : 365,600.22 = 85,984.84 : x
  2. Step 2: Convert to fraction form
    243,777.16/365,600.22 = 85,984.84/x
  3. Step 3: Cross multiply
    243,777.16x = 365,600.22 × 85,984.84
  4. Step 4: Simplify right side
    243,777.16x = 31,436,076,420.66
  5. Step 5: Solve for x
    x = 31,436,076,420.66/243,777.16
  6. Step 6: Final answer
    x = 128,954.15

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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.