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Finding the Fourth Proportional to 162,978.40, 244,467.60 and 162,978.40

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Solution

The fourth proportional to 162,978.40, 244,467.60 and 162,978.40 is: 244,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,978.40 : 244,467.60 = 162,978.40 : x
  2. Step 2: Convert to fraction form
    162,978.40/244,467.60 = 162,978.40/x
  3. Step 3: Cross multiply
    162,978.40x = 244,467.60 × 162,978.40
  4. Step 4: Simplify right side
    162,978.40x = 39,842,938,299.84
  5. Step 5: Solve for x
    x = 39,842,938,299.84/162,978.40
  6. Step 6: Final answer
    x = 244,467.60

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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.