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Finding the Fourth Proportional to 123,293.60, 184,940.40 and 118,455.20

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Solution

The fourth proportional to 123,293.60, 184,940.40 and 118,455.20 is: 177,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,293.60 : 184,940.40 = 118,455.20 : x
  2. Step 2: Convert to fraction form
    123,293.60/184,940.40 = 118,455.20/x
  3. Step 3: Cross multiply
    123,293.60x = 184,940.40 × 118,455.20
  4. Step 4: Simplify right side
    123,293.60x = 21,907,152,070.08
  5. Step 5: Solve for x
    x = 21,907,152,070.08/123,293.60
  6. Step 6: Final answer
    x = 177,682.80

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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.