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Finding the Fourth Proportional to 267,128.48, 368,621 and 146,271.20

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Solution

The fourth proportional to 267,128.48, 368,621 and 146,271.20 is: 201,845.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,128.48 : 368,621 = 146,271.20 : x
  2. Step 2: Convert to fraction form
    267,128.48/368,621 = 146,271.20/x
  3. Step 3: Cross multiply
    267,128.48x = 368,621 × 146,271.20
  4. Step 4: Simplify right side
    267,128.48x = 53,918,636,015.20
  5. Step 5: Solve for x
    x = 53,918,636,015.20/267,128.48
  6. Step 6: Final answer
    x = 201,845.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.