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Finding the Fourth Proportional to 368,060.90, 551,865.18 and 143,159.16

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Solution

The fourth proportional to 368,060.90, 551,865.18 and 143,159.16 is: 214,650.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,060.90 : 551,865.18 = 143,159.16 : x
  2. Step 2: Convert to fraction form
    368,060.90/551,865.18 = 143,159.16/x
  3. Step 3: Cross multiply
    368,060.90x = 551,865.18 × 143,159.16
  4. Step 4: Simplify right side
    368,060.90x = 79,004,558,208.39
  5. Step 5: Solve for x
    x = 79,004,558,208.39/368,060.90
  6. Step 6: Final answer
    x = 214,650.78

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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.