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Finding the Fourth Proportional to 613,068.72, 919,650.24 and 186,641.14

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Solution

The fourth proportional to 613,068.72, 919,650.24 and 186,641.14 is: 279,976.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,068.72 : 919,650.24 = 186,641.14 : x
  2. Step 2: Convert to fraction form
    613,068.72/919,650.24 = 186,641.14/x
  3. Step 3: Cross multiply
    613,068.72x = 919,650.24 × 186,641.14
  4. Step 4: Simplify right side
    613,068.72x = 171,644,572,640.63
  5. Step 5: Solve for x
    x = 171,644,572,640.63/613,068.72
  6. Step 6: Final answer
    x = 279,976.07

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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.