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Finding the Fourth Proportional to 156,777.70, 234,820.95 and 136,041.70

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Solution

The fourth proportional to 156,777.70, 234,820.95 and 136,041.70 is: 203,762.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,777.70 : 234,820.95 = 136,041.70 : x
  2. Step 2: Convert to fraction form
    156,777.70/234,820.95 = 136,041.70/x
  3. Step 3: Cross multiply
    156,777.70x = 234,820.95 × 136,041.70
  4. Step 4: Simplify right side
    156,777.70x = 31,945,441,233.62
  5. Step 5: Solve for x
    x = 31,945,441,233.62/156,777.70
  6. Step 6: Final answer
    x = 203,762.66

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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.