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Finding the Fourth Proportional to 103,668.30, 155,521.65 and 33,549.90

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Solution

The fourth proportional to 103,668.30, 155,521.65 and 33,549.90 is: 50,331.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,668.30 : 155,521.65 = 33,549.90 : x
  2. Step 2: Convert to fraction form
    103,668.30/155,521.65 = 33,549.90/x
  3. Step 3: Cross multiply
    103,668.30x = 155,521.65 × 33,549.90
  4. Step 4: Simplify right side
    103,668.30x = 5,217,735,805.34
  5. Step 5: Solve for x
    x = 5,217,735,805.34/103,668.30
  6. Step 6: Final answer
    x = 50,331.06

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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.