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Finding the Fourth Proportional to 188,726.19, 260,442.11 and 103,843.26

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Solution

The fourth proportional to 188,726.19, 260,442.11 and 103,843.26 is: 143,303.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,726.19 : 260,442.11 = 103,843.26 : x
  2. Step 2: Convert to fraction form
    188,726.19/260,442.11 = 103,843.26/x
  3. Step 3: Cross multiply
    188,726.19x = 260,442.11 × 103,843.26
  4. Step 4: Simplify right side
    188,726.19x = 27,045,157,224.46
  5. Step 5: Solve for x
    x = 27,045,157,224.46/188,726.19
  6. Step 6: Final answer
    x = 143,303.68

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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.