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Finding the Fourth Proportional to 223,342.90, 308,239.40 and 132,699.60

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Solution

The fourth proportional to 223,342.90, 308,239.40 and 132,699.60 is: 183,141.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,342.90 : 308,239.40 = 132,699.60 : x
  2. Step 2: Convert to fraction form
    223,342.90/308,239.40 = 132,699.60/x
  3. Step 3: Cross multiply
    223,342.90x = 308,239.40 × 132,699.60
  4. Step 4: Simplify right side
    223,342.90x = 40,903,245,415.99
  5. Step 5: Solve for x
    x = 40,903,245,415.99/223,342.90
  6. Step 6: Final answer
    x = 183,141.02

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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.