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Finding the Fourth Proportional to 356,808.20, 535,236.93 and 104,084.69

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Solution

The fourth proportional to 356,808.20, 535,236.93 and 104,084.69 is: 156,134.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,808.20 : 535,236.93 = 104,084.69 : x
  2. Step 2: Convert to fraction form
    356,808.20/535,236.93 = 104,084.69/x
  3. Step 3: Cross multiply
    356,808.20x = 535,236.93 × 104,084.69
  4. Step 4: Simplify right side
    356,808.20x = 55,709,967,259.42
  5. Step 5: Solve for x
    x = 55,709,967,259.42/356,808.20
  6. Step 6: Final answer
    x = 156,134.21

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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.