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Finding the Fourth Proportional to 207,364.90, 310,464.14 and 186,369.70

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Solution

The fourth proportional to 207,364.90, 310,464.14 and 186,369.70 is: 279,030.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,364.90 : 310,464.14 = 186,369.70 : x
  2. Step 2: Convert to fraction form
    207,364.90/310,464.14 = 186,369.70/x
  3. Step 3: Cross multiply
    207,364.90x = 310,464.14 × 186,369.70
  4. Step 4: Simplify right side
    207,364.90x = 57,861,108,632.56
  5. Step 5: Solve for x
    x = 57,861,108,632.56/207,364.90
  6. Step 6: Final answer
    x = 279,030.39

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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.