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Finding the Fourth Proportional to 401,089.08, 601,638.48 and 134,848.56

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Solution

The fourth proportional to 401,089.08, 601,638.48 and 134,848.56 is: 202,274.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,089.08 : 601,638.48 = 134,848.56 : x
  2. Step 2: Convert to fraction form
    401,089.08/601,638.48 = 134,848.56/x
  3. Step 3: Cross multiply
    401,089.08x = 601,638.48 × 134,848.56
  4. Step 4: Simplify right side
    401,089.08x = 81,130,082,668.59
  5. Step 5: Solve for x
    x = 81,130,082,668.59/401,089.08
  6. Step 6: Final answer
    x = 202,274.47

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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.