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Finding the Fourth Proportional to 281,354.96, 388,274.68 and 173,922.24

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Solution

The fourth proportional to 281,354.96, 388,274.68 and 173,922.24 is: 240,015.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,354.96 : 388,274.68 = 173,922.24 : x
  2. Step 2: Convert to fraction form
    281,354.96/388,274.68 = 173,922.24/x
  3. Step 3: Cross multiply
    281,354.96x = 388,274.68 × 173,922.24
  4. Step 4: Simplify right side
    281,354.96x = 67,529,602,080.88
  5. Step 5: Solve for x
    x = 67,529,602,080.88/281,354.96
  6. Step 6: Final answer
    x = 240,015.68

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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.