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Finding the Fourth Proportional to 304,820.20, 457,230.30 and 94,479.40

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Solution

The fourth proportional to 304,820.20, 457,230.30 and 94,479.40 is: 141,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,820.20 : 457,230.30 = 94,479.40 : x
  2. Step 2: Convert to fraction form
    304,820.20/457,230.30 = 94,479.40/x
  3. Step 3: Cross multiply
    304,820.20x = 457,230.30 × 94,479.40
  4. Step 4: Simplify right side
    304,820.20x = 43,198,844,405.82
  5. Step 5: Solve for x
    x = 43,198,844,405.82/304,820.20
  6. Step 6: Final answer
    x = 141,719.10

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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.