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Finding the Fourth Proportional to 174,034.60, 261,051.90 and 118,738.60

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Solution

The fourth proportional to 174,034.60, 261,051.90 and 118,738.60 is: 178,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,034.60 : 261,051.90 = 118,738.60 : x
  2. Step 2: Convert to fraction form
    174,034.60/261,051.90 = 118,738.60/x
  3. Step 3: Cross multiply
    174,034.60x = 261,051.90 × 118,738.60
  4. Step 4: Simplify right side
    174,034.60x = 30,996,937,133.34
  5. Step 5: Solve for x
    x = 30,996,937,133.34/174,034.60
  6. Step 6: Final answer
    x = 178,107.90

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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.