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Finding the Fourth Proportional to 235,883.60, 325,519.56 and 135,285.20

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Solution

The fourth proportional to 235,883.60, 325,519.56 and 135,285.20 is: 186,693.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,883.60 : 325,519.56 = 135,285.20 : x
  2. Step 2: Convert to fraction form
    235,883.60/325,519.56 = 135,285.20/x
  3. Step 3: Cross multiply
    235,883.60x = 325,519.56 × 135,285.20
  4. Step 4: Simplify right side
    235,883.60x = 44,037,978,778.51
  5. Step 5: Solve for x
    x = 44,037,978,778.51/235,883.60
  6. Step 6: Final answer
    x = 186,693.69

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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.