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Finding the Fourth Proportional to 188,553.17, 260,203.74 and 103,670.26

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Solution

The fourth proportional to 188,553.17, 260,203.74 and 103,670.26 is: 143,065.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,553.17 : 260,203.74 = 103,670.26 : x
  2. Step 2: Convert to fraction form
    188,553.17/260,203.74 = 103,670.26/x
  3. Step 3: Cross multiply
    188,553.17x = 260,203.74 × 103,670.26
  4. Step 4: Simplify right side
    188,553.17x = 26,975,389,378.77
  5. Step 5: Solve for x
    x = 26,975,389,378.77/188,553.17
  6. Step 6: Final answer
    x = 143,065.16

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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.