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Finding the Fourth Proportional to 322,730.20, 484,315.82 and 112,368.13

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Solution

The fourth proportional to 322,730.20, 484,315.82 and 112,368.13 is: 168,628.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,730.20 : 484,315.82 = 112,368.13 : x
  2. Step 2: Convert to fraction form
    322,730.20/484,315.82 = 112,368.13/x
  3. Step 3: Cross multiply
    322,730.20x = 484,315.82 × 112,368.13
  4. Step 4: Simplify right side
    322,730.20x = 54,421,663,022.82
  5. Step 5: Solve for x
    x = 54,421,663,022.82/322,730.20
  6. Step 6: Final answer
    x = 168,628.98

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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.