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Finding the Fourth Proportional to 79,220.74, 118,857.58 and 25,915.14

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Solution

The fourth proportional to 79,220.74, 118,857.58 and 25,915.14 is: 38,881.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,220.74 : 118,857.58 = 25,915.14 : x
  2. Step 2: Convert to fraction form
    79,220.74/118,857.58 = 25,915.14/x
  3. Step 3: Cross multiply
    79,220.74x = 118,857.58 × 25,915.14
  4. Step 4: Simplify right side
    79,220.74x = 3,080,210,825.76
  5. Step 5: Solve for x
    x = 3,080,210,825.76/79,220.74
  6. Step 6: Final answer
    x = 38,881.37

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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.