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Finding the Fourth Proportional to 188,914.14, 260,700.21 and 104,030.50

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Solution

The fourth proportional to 188,914.14, 260,700.21 and 104,030.50 is: 143,561.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,914.14 : 260,700.21 = 104,030.50 : x
  2. Step 2: Convert to fraction form
    188,914.14/260,700.21 = 104,030.50/x
  3. Step 3: Cross multiply
    188,914.14x = 260,700.21 × 104,030.50
  4. Step 4: Simplify right side
    188,914.14x = 27,120,773,196.41
  5. Step 5: Solve for x
    x = 27,120,773,196.41/188,914.14
  6. Step 6: Final answer
    x = 143,561.37

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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.