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Finding the Fourth Proportional to 549,203.40, 823,172.40 and 212,095.44

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Solution

The fourth proportional to 549,203.40, 823,172.40 and 212,095.44 is: 317,898.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,203.40 : 823,172.40 = 212,095.44 : x
  2. Step 2: Convert to fraction form
    549,203.40/823,172.40 = 212,095.44/x
  3. Step 3: Cross multiply
    549,203.40x = 823,172.40 × 212,095.44
  4. Step 4: Simplify right side
    549,203.40x = 174,591,112,373.86
  5. Step 5: Solve for x
    x = 174,591,112,373.86/549,203.40
  6. Step 6: Final answer
    x = 317,898.82

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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.