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Finding the Fourth Proportional to 302,013.70, 453,020.55 and 124,429.30

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Solution

The fourth proportional to 302,013.70, 453,020.55 and 124,429.30 is: 186,643.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,013.70 : 453,020.55 = 124,429.30 : x
  2. Step 2: Convert to fraction form
    302,013.70/453,020.55 = 124,429.30/x
  3. Step 3: Cross multiply
    302,013.70x = 453,020.55 × 124,429.30
  4. Step 4: Simplify right side
    302,013.70x = 56,369,029,922.12
  5. Step 5: Solve for x
    x = 56,369,029,922.12/302,013.70
  6. Step 6: Final answer
    x = 186,643.95

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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.