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Finding the Fourth Proportional to 350,808.06, 526,204.80 and 140,389.50

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Solution

The fourth proportional to 350,808.06, 526,204.80 and 140,389.50 is: 210,581.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,808.06 : 526,204.80 = 140,389.50 : x
  2. Step 2: Convert to fraction form
    350,808.06/526,204.80 = 140,389.50/x
  3. Step 3: Cross multiply
    350,808.06x = 526,204.80 × 140,389.50
  4. Step 4: Simplify right side
    350,808.06x = 73,873,628,769.60
  5. Step 5: Solve for x
    x = 73,873,628,769.60/350,808.06
  6. Step 6: Final answer
    x = 210,581.33

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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.