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Finding the Fourth Proportional to 469,153.50, 703,859.85 and 136,729.50

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Solution

The fourth proportional to 469,153.50, 703,859.85 and 136,729.50 is: 205,132.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,153.50 : 703,859.85 = 136,729.50 : x
  2. Step 2: Convert to fraction form
    469,153.50/703,859.85 = 136,729.50/x
  3. Step 3: Cross multiply
    469,153.50x = 703,859.85 × 136,729.50
  4. Step 4: Simplify right side
    469,153.50x = 96,238,405,360.58
  5. Step 5: Solve for x
    x = 96,238,405,360.58/469,153.50
  6. Step 6: Final answer
    x = 205,132.02

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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.