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Finding the Fourth Proportional to 107,668.76, 148,568.16 and 59,915.56

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Solution

The fourth proportional to 107,668.76, 148,568.16 and 59,915.56 is: 82,675.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,668.76 : 148,568.16 = 59,915.56 : x
  2. Step 2: Convert to fraction form
    107,668.76/148,568.16 = 59,915.56/x
  3. Step 3: Cross multiply
    107,668.76x = 148,568.16 × 59,915.56
  4. Step 4: Simplify right side
    107,668.76x = 8,901,544,504.57
  5. Step 5: Solve for x
    x = 8,901,544,504.57/107,668.76
  6. Step 6: Final answer
    x = 82,675.28

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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.