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Finding the Fourth Proportional to 188,980.58, 260,783.36 and 117,359.07

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Solution

The fourth proportional to 188,980.58, 260,783.36 and 117,359.07 is: 161,949.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,980.58 : 260,783.36 = 117,359.07 : x
  2. Step 2: Convert to fraction form
    188,980.58/260,783.36 = 117,359.07/x
  3. Step 3: Cross multiply
    188,980.58x = 260,783.36 × 117,359.07
  4. Step 4: Simplify right side
    188,980.58x = 30,605,292,601.08
  5. Step 5: Solve for x
    x = 30,605,292,601.08/188,980.58
  6. Step 6: Final answer
    x = 161,949.41

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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.