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Finding the Fourth Proportional to 360,513.64, 540,846.60 and 135,869.32

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Solution

The fourth proportional to 360,513.64, 540,846.60 and 135,869.32 is: 203,832.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,513.64 : 540,846.60 = 135,869.32 : x
  2. Step 2: Convert to fraction form
    360,513.64/540,846.60 = 135,869.32/x
  3. Step 3: Cross multiply
    360,513.64x = 540,846.60 × 135,869.32
  4. Step 4: Simplify right side
    360,513.64x = 73,484,459,766.31
  5. Step 5: Solve for x
    x = 73,484,459,766.31/360,513.64
  6. Step 6: Final answer
    x = 203,832.68

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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.