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Finding the Fourth Proportional to 150,563.64, 207,256.35 and 130,136.40

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Solution

The fourth proportional to 150,563.64, 207,256.35 and 130,136.40 is: 179,137.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,563.64 : 207,256.35 = 130,136.40 : x
  2. Step 2: Convert to fraction form
    150,563.64/207,256.35 = 130,136.40/x
  3. Step 3: Cross multiply
    150,563.64x = 207,256.35 × 130,136.40
  4. Step 4: Simplify right side
    150,563.64x = 26,971,595,266.14
  5. Step 5: Solve for x
    x = 26,971,595,266.14/150,563.64
  6. Step 6: Final answer
    x = 179,137.51

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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.