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Finding the Fourth Proportional to 201,617.20, 302,425.80 and 61,357.60

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Solution

The fourth proportional to 201,617.20, 302,425.80 and 61,357.60 is: 92,036.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,617.20 : 302,425.80 = 61,357.60 : x
  2. Step 2: Convert to fraction form
    201,617.20/302,425.80 = 61,357.60/x
  3. Step 3: Cross multiply
    201,617.20x = 302,425.80 × 61,357.60
  4. Step 4: Simplify right side
    201,617.20x = 18,556,121,266.08
  5. Step 5: Solve for x
    x = 18,556,121,266.08/201,617.20
  6. Step 6: Final answer
    x = 92,036.40

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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.