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Finding the Fourth Proportional to 185,552.34, 256,059.93 and 100,668.78

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Solution

The fourth proportional to 185,552.34, 256,059.93 and 100,668.78 is: 138,921.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,552.34 : 256,059.93 = 100,668.78 : x
  2. Step 2: Convert to fraction form
    185,552.34/256,059.93 = 100,668.78/x
  3. Step 3: Cross multiply
    185,552.34x = 256,059.93 × 100,668.78
  4. Step 4: Simplify right side
    185,552.34x = 25,777,240,759.99
  5. Step 5: Solve for x
    x = 25,777,240,759.99/185,552.34
  6. Step 6: Final answer
    x = 138,921.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.