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Finding the Fourth Proportional to 295,131.30, 442,879.20 and 117,619.80

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Solution

The fourth proportional to 295,131.30, 442,879.20 and 117,619.80 is: 176,502.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,131.30 : 442,879.20 = 117,619.80 : x
  2. Step 2: Convert to fraction form
    295,131.30/442,879.20 = 117,619.80/x
  3. Step 3: Cross multiply
    295,131.30x = 442,879.20 × 117,619.80
  4. Step 4: Simplify right side
    295,131.30x = 52,091,362,928.16
  5. Step 5: Solve for x
    x = 52,091,362,928.16/295,131.30
  6. Step 6: Final answer
    x = 176,502.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.