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Finding the Fourth Proportional to 231,293.52, 346,940.64 and 118,988.64

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Solution

The fourth proportional to 231,293.52, 346,940.64 and 118,988.64 is: 178,483.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,293.52 : 346,940.64 = 118,988.64 : x
  2. Step 2: Convert to fraction form
    231,293.52/346,940.64 = 118,988.64/x
  3. Step 3: Cross multiply
    231,293.52x = 346,940.64 × 118,988.64
  4. Step 4: Simplify right side
    231,293.52x = 41,281,994,914.33
  5. Step 5: Solve for x
    x = 41,281,994,914.33/231,293.52
  6. Step 6: Final answer
    x = 178,483.15

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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.