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Finding the Fourth Proportional to 188,636.29, 260,323.01 and 103,755.58

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Solution

The fourth proportional to 188,636.29, 260,323.01 and 103,755.58 is: 143,185.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,636.29 : 260,323.01 = 103,755.58 : x
  2. Step 2: Convert to fraction form
    188,636.29/260,323.01 = 103,755.58/x
  3. Step 3: Cross multiply
    188,636.29x = 260,323.01 × 103,755.58
  4. Step 4: Simplify right side
    188,636.29x = 27,009,964,371.12
  5. Step 5: Solve for x
    x = 27,009,964,371.12/188,636.29
  6. Step 6: Final answer
    x = 143,185.41

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1.5x scale

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.