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Finding the Fourth Proportional to 270,164.56, 372,817 and 155,460.91

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Solution

The fourth proportional to 270,164.56, 372,817 and 155,460.91 is: 214,530.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,164.56 : 372,817 = 155,460.91 : x
  2. Step 2: Convert to fraction form
    270,164.56/372,817 = 155,460.91/x
  3. Step 3: Cross multiply
    270,164.56x = 372,817 × 155,460.91
  4. Step 4: Simplify right side
    270,164.56x = 57,958,470,083.47
  5. Step 5: Solve for x
    x = 57,958,470,083.47/270,164.56
  6. Step 6: Final answer
    x = 214,530.25

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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.