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Finding the Fourth Proportional to 302,860.80, 454,312.80 and 92,498.40

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Solution

The fourth proportional to 302,860.80, 454,312.80 and 92,498.40 is: 138,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,860.80 : 454,312.80 = 92,498.40 : x
  2. Step 2: Convert to fraction form
    302,860.80/454,312.80 = 92,498.40/x
  3. Step 3: Cross multiply
    302,860.80x = 454,312.80 × 92,498.40
  4. Step 4: Simplify right side
    302,860.80x = 42,023,207,099.52
  5. Step 5: Solve for x
    x = 42,023,207,099.52/302,860.80
  6. Step 6: Final answer
    x = 138,754.20

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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.