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Finding the Fourth Proportional to 212,664.60, 298,124.10 and 212,664.60

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Solution

The fourth proportional to 212,664.60, 298,124.10 and 212,664.60 is: 298,124.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,664.60 : 298,124.10 = 212,664.60 : x
  2. Step 2: Convert to fraction form
    212,664.60/298,124.10 = 212,664.60/x
  3. Step 3: Cross multiply
    212,664.60x = 298,124.10 × 212,664.60
  4. Step 4: Simplify right side
    212,664.60x = 63,400,442,476.86
  5. Step 5: Solve for x
    x = 63,400,442,476.86/212,664.60
  6. Step 6: Final answer
    x = 298,124.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.