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Finding the Fourth Proportional to 265,205.48, 397,670.58 and 130,210.20

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Solution

The fourth proportional to 265,205.48, 397,670.58 and 130,210.20 is: 195,247.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,205.48 : 397,670.58 = 130,210.20 : x
  2. Step 2: Convert to fraction form
    265,205.48/397,670.58 = 130,210.20/x
  3. Step 3: Cross multiply
    265,205.48x = 397,670.58 × 130,210.20
  4. Step 4: Simplify right side
    265,205.48x = 51,780,765,755.92
  5. Step 5: Solve for x
    x = 51,780,765,755.92/265,205.48
  6. Step 6: Final answer
    x = 195,247.73

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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.