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Finding the Fourth Proportional to 245,660.40, 367,615.80 and 170,427.60

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Solution

The fourth proportional to 245,660.40, 367,615.80 and 170,427.60 is: 255,034.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,660.40 : 367,615.80 = 170,427.60 : x
  2. Step 2: Convert to fraction form
    245,660.40/367,615.80 = 170,427.60/x
  3. Step 3: Cross multiply
    245,660.40x = 367,615.80 × 170,427.60
  4. Step 4: Simplify right side
    245,660.40x = 62,651,878,516.08
  5. Step 5: Solve for x
    x = 62,651,878,516.08/245,660.40
  6. Step 6: Final answer
    x = 255,034.51

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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.