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Finding the Fourth Proportional to 333,965.45, 499,765.66 and 207,665.18

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Solution

The fourth proportional to 333,965.45, 499,765.66 and 207,665.18 is: 310,762.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,965.45 : 499,765.66 = 207,665.18 : x
  2. Step 2: Convert to fraction form
    333,965.45/499,765.66 = 207,665.18/x
  3. Step 3: Cross multiply
    333,965.45x = 499,765.66 × 207,665.18
  4. Step 4: Simplify right side
    333,965.45x = 103,783,926,208.11
  5. Step 5: Solve for x
    x = 103,783,926,208.11/333,965.45
  6. Step 6: Final answer
    x = 310,762.46

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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.