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Finding the Fourth Proportional to 230,027.60, 317,437.56 and 129,425.60

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Solution

The fourth proportional to 230,027.60, 317,437.56 and 129,425.60 is: 178,607.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,027.60 : 317,437.56 = 129,425.60 : x
  2. Step 2: Convert to fraction form
    230,027.60/317,437.56 = 129,425.60/x
  3. Step 3: Cross multiply
    230,027.60x = 317,437.56 × 129,425.60
  4. Step 4: Simplify right side
    230,027.60x = 41,084,546,665.54
  5. Step 5: Solve for x
    x = 41,084,546,665.54/230,027.60
  6. Step 6: Final answer
    x = 178,607.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.