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Finding the Fourth Proportional to 201,664.30, 302,605.80 and 83,347.60

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Solution

The fourth proportional to 201,664.30, 302,605.80 and 83,347.60 is: 125,066.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,664.30 : 302,605.80 = 83,347.60 : x
  2. Step 2: Convert to fraction form
    201,664.30/302,605.80 = 83,347.60/x
  3. Step 3: Cross multiply
    201,664.30x = 302,605.80 × 83,347.60
  4. Step 4: Simplify right side
    201,664.30x = 25,221,467,176.08
  5. Step 5: Solve for x
    x = 25,221,467,176.08/201,664.30
  6. Step 6: Final answer
    x = 125,066.59

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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.