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Finding the Fourth Proportional to 164,386.60, 246,361.91 and 84,421.34

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Solution

The fourth proportional to 164,386.60, 246,361.91 and 84,421.34 is: 126,520.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,386.60 : 246,361.91 = 84,421.34 : x
  2. Step 2: Convert to fraction form
    164,386.60/246,361.91 = 84,421.34/x
  3. Step 3: Cross multiply
    164,386.60x = 246,361.91 × 84,421.34
  4. Step 4: Simplify right side
    164,386.60x = 20,798,201,837.10
  5. Step 5: Solve for x
    x = 20,798,201,837.10/164,386.60
  6. Step 6: Final answer
    x = 126,520.06

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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.