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Finding the Fourth Proportional to 235,798.48, 353,662.56 and 86,003.60

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Solution

The fourth proportional to 235,798.48, 353,662.56 and 86,003.60 is: 128,992.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,798.48 : 353,662.56 = 86,003.60 : x
  2. Step 2: Convert to fraction form
    235,798.48/353,662.56 = 86,003.60/x
  3. Step 3: Cross multiply
    235,798.48x = 353,662.56 × 86,003.60
  4. Step 4: Simplify right side
    235,798.48x = 30,416,253,345.22
  5. Step 5: Solve for x
    x = 30,416,253,345.22/235,798.48
  6. Step 6: Final answer
    x = 128,992.58

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1.5x scale

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.