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Finding the Fourth Proportional to 304,628.68, 456,931.62 and 79,987.04

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Solution

The fourth proportional to 304,628.68, 456,931.62 and 79,987.04 is: 119,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,628.68 : 456,931.62 = 79,987.04 : x
  2. Step 2: Convert to fraction form
    304,628.68/456,931.62 = 79,987.04/x
  3. Step 3: Cross multiply
    304,628.68x = 456,931.62 × 79,987.04
  4. Step 4: Simplify right side
    304,628.68x = 36,548,607,766.20
  5. Step 5: Solve for x
    x = 36,548,607,766.20/304,628.68
  6. Step 6: Final answer
    x = 119,977.57

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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.