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Finding the Fourth Proportional to 421,353.27, 632,092.94 and 155,093.52

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Solution

The fourth proportional to 421,353.27, 632,092.94 and 155,093.52 is: 232,663.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,353.27 : 632,092.94 = 155,093.52 : x
  2. Step 2: Convert to fraction form
    421,353.27/632,092.94 = 155,093.52/x
  3. Step 3: Cross multiply
    421,353.27x = 632,092.94 × 155,093.52
  4. Step 4: Simplify right side
    421,353.27x = 98,033,518,256.28
  5. Step 5: Solve for x
    x = 98,033,518,256.28/421,353.27
  6. Step 6: Final answer
    x = 232,663.48

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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.