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Finding the Fourth Proportional to 183,973.46, 275,729.33 and 78,668.60

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Solution

The fourth proportional to 183,973.46, 275,729.33 and 78,668.60 is: 117,904.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,973.46 : 275,729.33 = 78,668.60 : x
  2. Step 2: Convert to fraction form
    183,973.46/275,729.33 = 78,668.60/x
  3. Step 3: Cross multiply
    183,973.46x = 275,729.33 × 78,668.60
  4. Step 4: Simplify right side
    183,973.46x = 21,691,240,370.04
  5. Step 5: Solve for x
    x = 21,691,240,370.04/183,973.46
  6. Step 6: Final answer
    x = 117,904.18

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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.