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Finding the Fourth Proportional to 201,696.76, 278,348.16 and 111,059.38

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Solution

The fourth proportional to 201,696.76, 278,348.16 and 111,059.38 is: 153,265.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,696.76 : 278,348.16 = 111,059.38 : x
  2. Step 2: Convert to fraction form
    201,696.76/278,348.16 = 111,059.38/x
  3. Step 3: Cross multiply
    201,696.76x = 278,348.16 × 111,059.38
  4. Step 4: Simplify right side
    201,696.76x = 30,913,174,073.74
  5. Step 5: Solve for x
    x = 30,913,174,073.74/201,696.76
  6. Step 6: Final answer
    x = 153,265.60

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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.