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Finding the Fourth Proportional to 270,055.50, 372,665.23 and 155,325.48

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Solution

The fourth proportional to 270,055.50, 372,665.23 and 155,325.48 is: 214,342.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,055.50 : 372,665.23 = 155,325.48 : x
  2. Step 2: Convert to fraction form
    270,055.50/372,665.23 = 155,325.48/x
  3. Step 3: Cross multiply
    270,055.50x = 372,665.23 × 155,325.48
  4. Step 4: Simplify right side
    270,055.50x = 57,884,405,729.06
  5. Step 5: Solve for x
    x = 57,884,405,729.06/270,055.50
  6. Step 6: Final answer
    x = 214,342.63

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1.5x scale

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.