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Finding the Fourth Proportional to 329,825.16, 455,159.58 and 178,922.16

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Solution

The fourth proportional to 329,825.16, 455,159.58 and 178,922.16 is: 246,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,825.16 : 455,159.58 = 178,922.16 : x
  2. Step 2: Convert to fraction form
    329,825.16/455,159.58 = 178,922.16/x
  3. Step 3: Cross multiply
    329,825.16x = 455,159.58 × 178,922.16
  4. Step 4: Simplify right side
    329,825.16x = 81,438,135,198.29
  5. Step 5: Solve for x
    x = 81,438,135,198.29/329,825.16
  6. Step 6: Final answer
    x = 246,913.05

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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.