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Finding the Fourth Proportional to 201,628.40, 302,442.60 and 83,260.40

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Solution

The fourth proportional to 201,628.40, 302,442.60 and 83,260.40 is: 124,890.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,628.40 : 302,442.60 = 83,260.40 : x
  2. Step 2: Convert to fraction form
    201,628.40/302,442.60 = 83,260.40/x
  3. Step 3: Cross multiply
    201,628.40x = 302,442.60 × 83,260.40
  4. Step 4: Simplify right side
    201,628.40x = 25,181,491,853.04
  5. Step 5: Solve for x
    x = 25,181,491,853.04/201,628.40
  6. Step 6: Final answer
    x = 124,890.60

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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.