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Finding the Fourth Proportional to 178,041.60, 267,645.60 and 125,812.80

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Solution

The fourth proportional to 178,041.60, 267,645.60 and 125,812.80 is: 189,131.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,041.60 : 267,645.60 = 125,812.80 : x
  2. Step 2: Convert to fraction form
    178,041.60/267,645.60 = 125,812.80/x
  3. Step 3: Cross multiply
    178,041.60x = 267,645.60 × 125,812.80
  4. Step 4: Simplify right side
    178,041.60x = 33,673,242,343.68
  5. Step 5: Solve for x
    x = 33,673,242,343.68/178,041.60
  6. Step 6: Final answer
    x = 189,131.32

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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.