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Finding the Fourth Proportional to 367,574.70, 551,362.05 and 145,958.70

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Solution

The fourth proportional to 367,574.70, 551,362.05 and 145,958.70 is: 218,938.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,574.70 : 551,362.05 = 145,958.70 : x
  2. Step 2: Convert to fraction form
    367,574.70/551,362.05 = 145,958.70/x
  3. Step 3: Cross multiply
    367,574.70x = 551,362.05 × 145,958.70
  4. Step 4: Simplify right side
    367,574.70x = 80,476,088,047.34
  5. Step 5: Solve for x
    x = 80,476,088,047.34/367,574.70
  6. Step 6: Final answer
    x = 218,938.05

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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.