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Finding the Fourth Proportional to 384,556.90, 576,835.35 and 162,912.10

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Solution

The fourth proportional to 384,556.90, 576,835.35 and 162,912.10 is: 244,368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,556.90 : 576,835.35 = 162,912.10 : x
  2. Step 2: Convert to fraction form
    384,556.90/576,835.35 = 162,912.10/x
  3. Step 3: Cross multiply
    384,556.90x = 576,835.35 × 162,912.10
  4. Step 4: Simplify right side
    384,556.90x = 93,973,458,222.74
  5. Step 5: Solve for x
    x = 93,973,458,222.74/384,556.90
  6. Step 6: Final answer
    x = 244,368.15

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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.