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Finding the Fourth Proportional to 201,928.80, 302,783.85 and 83,466.30

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Solution

The fourth proportional to 201,928.80, 302,783.85 and 83,466.30 is: 125,154.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,928.80 : 302,783.85 = 83,466.30 : x
  2. Step 2: Convert to fraction form
    201,928.80/302,783.85 = 83,466.30/x
  3. Step 3: Cross multiply
    201,928.80x = 302,783.85 × 83,466.30
  4. Step 4: Simplify right side
    201,928.80x = 25,272,247,659.26
  5. Step 5: Solve for x
    x = 25,272,247,659.26/201,928.80
  6. Step 6: Final answer
    x = 125,154.25

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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.