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Finding the Fourth Proportional to 326,602.60, 489,777.94 and 126,896.69

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Solution

The fourth proportional to 326,602.60, 489,777.94 and 126,896.69 is: 190,296.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,602.60 : 489,777.94 = 126,896.69 : x
  2. Step 2: Convert to fraction form
    326,602.60/489,777.94 = 126,896.69/x
  3. Step 3: Cross multiply
    326,602.60x = 489,777.94 × 126,896.69
  4. Step 4: Simplify right side
    326,602.60x = 62,151,200,804.08
  5. Step 5: Solve for x
    x = 62,151,200,804.08/326,602.60
  6. Step 6: Final answer
    x = 190,296.10

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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.