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Finding the Fourth Proportional to 380,685.37, 571,100.14 and 152,998.66

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Solution

The fourth proportional to 380,685.37, 571,100.14 and 152,998.66 is: 229,526.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,685.37 : 571,100.14 = 152,998.66 : x
  2. Step 2: Convert to fraction form
    380,685.37/571,100.14 = 152,998.66/x
  3. Step 3: Cross multiply
    380,685.37x = 571,100.14 × 152,998.66
  4. Step 4: Simplify right side
    380,685.37x = 87,377,556,145.81
  5. Step 5: Solve for x
    x = 87,377,556,145.81/380,685.37
  6. Step 6: Final answer
    x = 229,526.96

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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.