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Finding the Fourth Proportional to 292,494.76, 438,651.40 and 105,481.96

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Solution

The fourth proportional to 292,494.76, 438,651.40 and 105,481.96 is: 158,190.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,494.76 : 438,651.40 = 105,481.96 : x
  2. Step 2: Convert to fraction form
    292,494.76/438,651.40 = 105,481.96/x
  3. Step 3: Cross multiply
    292,494.76x = 438,651.40 × 105,481.96
  4. Step 4: Simplify right side
    292,494.76x = 46,269,809,428.74
  5. Step 5: Solve for x
    x = 46,269,809,428.74/292,494.76
  6. Step 6: Final answer
    x = 158,190.22

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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.