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Finding the Fourth Proportional to 334,636.48, 501,960.66 and 121,555.54

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Solution

The fourth proportional to 334,636.48, 501,960.66 and 121,555.54 is: 182,335.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,636.48 : 501,960.66 = 121,555.54 : x
  2. Step 2: Convert to fraction form
    334,636.48/501,960.66 = 121,555.54/x
  3. Step 3: Cross multiply
    334,636.48x = 501,960.66 × 121,555.54
  4. Step 4: Simplify right side
    334,636.48x = 61,016,099,085.06
  5. Step 5: Solve for x
    x = 61,016,099,085.06/334,636.48
  6. Step 6: Final answer
    x = 182,335.47

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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.