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Finding the Fourth Proportional to 290,240.06, 435,191.94 and 112,539.02

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Solution

The fourth proportional to 290,240.06, 435,191.94 and 112,539.02 is: 168,743.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,240.06 : 435,191.94 = 112,539.02 : x
  2. Step 2: Convert to fraction form
    290,240.06/435,191.94 = 112,539.02/x
  3. Step 3: Cross multiply
    290,240.06x = 435,191.94 × 112,539.02
  4. Step 4: Simplify right side
    290,240.06x = 48,976,072,263.54
  5. Step 5: Solve for x
    x = 48,976,072,263.54/290,240.06
  6. Step 6: Final answer
    x = 168,743.33

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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.