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Finding the Fourth Proportional to 359,949.35, 540,035.45 and 216,015.89

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Solution

The fourth proportional to 359,949.35, 540,035.45 and 216,015.89 is: 324,090.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,949.35 : 540,035.45 = 216,015.89 : x
  2. Step 2: Convert to fraction form
    359,949.35/540,035.45 = 216,015.89/x
  3. Step 3: Cross multiply
    359,949.35x = 540,035.45 × 216,015.89
  4. Step 4: Simplify right side
    359,949.35x = 116,656,234,583.04
  5. Step 5: Solve for x
    x = 116,656,234,583.04/359,949.35
  6. Step 6: Final answer
    x = 324,090.70

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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.