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Finding the Fourth Proportional to 341,738.20, 512,604.60 and 89,018.20

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Solution

The fourth proportional to 341,738.20, 512,604.60 and 89,018.20 is: 133,526.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,738.20 : 512,604.60 = 89,018.20 : x
  2. Step 2: Convert to fraction form
    341,738.20/512,604.60 = 89,018.20/x
  3. Step 3: Cross multiply
    341,738.20x = 512,604.60 × 89,018.20
  4. Step 4: Simplify right side
    341,738.20x = 45,631,138,803.72
  5. Step 5: Solve for x
    x = 45,631,138,803.72/341,738.20
  6. Step 6: Final answer
    x = 133,526.60

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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.