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Finding the Fourth Proportional to 352,293.51, 486,164.40 and 191,148.54

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Solution

The fourth proportional to 352,293.51, 486,164.40 and 191,148.54 is: 263,784.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,293.51 : 486,164.40 = 191,148.54 : x
  2. Step 2: Convert to fraction form
    352,293.51/486,164.40 = 191,148.54/x
  3. Step 3: Cross multiply
    352,293.51x = 486,164.40 × 191,148.54
  4. Step 4: Simplify right side
    352,293.51x = 92,929,615,259.98
  5. Step 5: Solve for x
    x = 92,929,615,259.98/352,293.51
  6. Step 6: Final answer
    x = 263,784.64

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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.