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Finding the Fourth Proportional to 302,671.20, 454,006.80 and 92,308.80

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Solution

The fourth proportional to 302,671.20, 454,006.80 and 92,308.80 is: 138,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,671.20 : 454,006.80 = 92,308.80 : x
  2. Step 2: Convert to fraction form
    302,671.20/454,006.80 = 92,308.80/x
  3. Step 3: Cross multiply
    302,671.20x = 454,006.80 × 92,308.80
  4. Step 4: Simplify right side
    302,671.20x = 41,908,822,899.84
  5. Step 5: Solve for x
    x = 41,908,822,899.84/302,671.20
  6. Step 6: Final answer
    x = 138,463.20

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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.