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Finding the Fourth Proportional to 188,463.83, 260,077.06 and 103,579.07

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Solution

The fourth proportional to 188,463.83, 260,077.06 and 103,579.07 is: 142,937.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,463.83 : 260,077.06 = 103,579.07 : x
  2. Step 2: Convert to fraction form
    188,463.83/260,077.06 = 103,579.07/x
  3. Step 3: Cross multiply
    188,463.83x = 260,077.06 × 103,579.07
  4. Step 4: Simplify right side
    188,463.83x = 26,938,538,832.22
  5. Step 5: Solve for x
    x = 26,938,538,832.22/188,463.83
  6. Step 6: Final answer
    x = 142,937.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.