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Finding the Fourth Proportional to 302,578.95, 453,704.40 and 124,885.20

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Solution

The fourth proportional to 302,578.95, 453,704.40 and 124,885.20 is: 187,260.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,578.95 : 453,704.40 = 124,885.20 : x
  2. Step 2: Convert to fraction form
    302,578.95/453,704.40 = 124,885.20/x
  3. Step 3: Cross multiply
    302,578.95x = 453,704.40 × 124,885.20
  4. Step 4: Simplify right side
    302,578.95x = 56,660,964,734.88
  5. Step 5: Solve for x
    x = 56,660,964,734.88/302,578.95
  6. Step 6: Final answer
    x = 187,260.10

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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.