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Finding the Fourth Proportional to 270,054.88, 372,664.32 and 155,324.84

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Solution

The fourth proportional to 270,054.88, 372,664.32 and 155,324.84 is: 214,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,054.88 : 372,664.32 = 155,324.84 : x
  2. Step 2: Convert to fraction form
    270,054.88/372,664.32 = 155,324.84/x
  3. Step 3: Cross multiply
    270,054.88x = 372,664.32 × 155,324.84
  4. Step 4: Simplify right side
    270,054.88x = 57,884,025,877.71
  5. Step 5: Solve for x
    x = 57,884,025,877.71/270,054.88
  6. Step 6: Final answer
    x = 214,341.71

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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.