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Finding the Fourth Proportional to 425,147.79, 637,758.41 and 109,602.03

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Solution

The fourth proportional to 425,147.79, 637,758.41 and 109,602.03 is: 164,412.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,147.79 : 637,758.41 = 109,602.03 : x
  2. Step 2: Convert to fraction form
    425,147.79/637,758.41 = 109,602.03/x
  3. Step 3: Cross multiply
    425,147.79x = 637,758.41 × 109,602.03
  4. Step 4: Simplify right side
    425,147.79x = 69,899,615,837.56
  5. Step 5: Solve for x
    x = 69,899,615,837.56/425,147.79
  6. Step 6: Final answer
    x = 164,412.51

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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.