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Finding the Fourth Proportional to 253,680.69, 350,081.93 and 153,059.25

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Solution

The fourth proportional to 253,680.69, 350,081.93 and 153,059.25 is: 211,223.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,680.69 : 350,081.93 = 153,059.25 : x
  2. Step 2: Convert to fraction form
    253,680.69/350,081.93 = 153,059.25/x
  3. Step 3: Cross multiply
    253,680.69x = 350,081.93 × 153,059.25
  4. Step 4: Simplify right side
    253,680.69x = 53,583,276,879.06
  5. Step 5: Solve for x
    x = 53,583,276,879.06/253,680.69
  6. Step 6: Final answer
    x = 211,223.32

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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.