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Finding the Fourth Proportional to 253,605.90, 380,134.26 and 164,923.05

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Solution

The fourth proportional to 253,605.90, 380,134.26 and 164,923.05 is: 247,206.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,605.90 : 380,134.26 = 164,923.05 : x
  2. Step 2: Convert to fraction form
    253,605.90/380,134.26 = 164,923.05/x
  3. Step 3: Cross multiply
    253,605.90x = 380,134.26 × 164,923.05
  4. Step 4: Simplify right side
    253,605.90x = 62,692,901,568.69
  5. Step 5: Solve for x
    x = 62,692,901,568.69/253,605.90
  6. Step 6: Final answer
    x = 247,206.01

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1.5x scale

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.