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Finding the Fourth Proportional to 291,851.87, 402,738.23 and 169,334.75

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Solution

The fourth proportional to 291,851.87, 402,738.23 and 169,334.75 is: 233,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,851.87 : 402,738.23 = 169,334.75 : x
  2. Step 2: Convert to fraction form
    291,851.87/402,738.23 = 169,334.75/x
  3. Step 3: Cross multiply
    291,851.87x = 402,738.23 × 169,334.75
  4. Step 4: Simplify right side
    291,851.87x = 68,197,578,922.68
  5. Step 5: Solve for x
    x = 68,197,578,922.68/291,851.87
  6. Step 6: Final answer
    x = 233,671.90

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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.