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Finding the Fourth Proportional to 245,309.30, 367,963.95 and 133,043.30

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Solution

The fourth proportional to 245,309.30, 367,963.95 and 133,043.30 is: 199,564.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,309.30 : 367,963.95 = 133,043.30 : x
  2. Step 2: Convert to fraction form
    245,309.30/367,963.95 = 133,043.30/x
  3. Step 3: Cross multiply
    245,309.30x = 367,963.95 × 133,043.30
  4. Step 4: Simplify right side
    245,309.30x = 48,955,138,189.04
  5. Step 5: Solve for x
    x = 48,955,138,189.04/245,309.30
  6. Step 6: Final answer
    x = 199,564.95

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1.5x scale

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.