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Finding the Fourth Proportional to 150,867.20, 210,937.60 and 150,867.20

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Solution

The fourth proportional to 150,867.20, 210,937.60 and 150,867.20 is: 210,937.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,867.20 : 210,937.60 = 150,867.20 : x
  2. Step 2: Convert to fraction form
    150,867.20/210,937.60 = 150,867.20/x
  3. Step 3: Cross multiply
    150,867.20x = 210,937.60 × 150,867.20
  4. Step 4: Simplify right side
    150,867.20x = 31,823,565,086.72
  5. Step 5: Solve for x
    x = 31,823,565,086.72/150,867.20
  6. Step 6: Final answer
    x = 210,937.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.