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Finding the Fourth Proportional to 363,912.10, 545,868.15 and 164,457.70

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Solution

The fourth proportional to 363,912.10, 545,868.15 and 164,457.70 is: 246,686.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,912.10 : 545,868.15 = 164,457.70 : x
  2. Step 2: Convert to fraction form
    363,912.10/545,868.15 = 164,457.70/x
  3. Step 3: Cross multiply
    363,912.10x = 545,868.15 × 164,457.70
  4. Step 4: Simplify right side
    363,912.10x = 89,772,220,452.26
  5. Step 5: Solve for x
    x = 89,772,220,452.26/363,912.10
  6. Step 6: Final answer
    x = 246,686.55

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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.