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Finding the Fourth Proportional to 103,668.95, 155,497.95 and 33,542.79

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Solution

The fourth proportional to 103,668.95, 155,497.95 and 33,542.79 is: 50,312.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,668.95 : 155,497.95 = 33,542.79 : x
  2. Step 2: Convert to fraction form
    103,668.95/155,497.95 = 33,542.79/x
  3. Step 3: Cross multiply
    103,668.95x = 155,497.95 × 33,542.79
  4. Step 4: Simplify right side
    103,668.95x = 5,215,835,082.28
  5. Step 5: Solve for x
    x = 5,215,835,082.28/103,668.95
  6. Step 6: Final answer
    x = 50,312.42

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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.