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Finding the Fourth Proportional to 223,338.60, 308,220.93 and 127,843.02

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Solution

The fourth proportional to 223,338.60, 308,220.93 and 127,843.02 is: 176,431.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,338.60 : 308,220.93 = 127,843.02 : x
  2. Step 2: Convert to fraction form
    223,338.60/308,220.93 = 127,843.02/x
  3. Step 3: Cross multiply
    223,338.60x = 308,220.93 × 127,843.02
  4. Step 4: Simplify right side
    223,338.60x = 39,403,894,518.41
  5. Step 5: Solve for x
    x = 39,403,894,518.41/223,338.60
  6. Step 6: Final answer
    x = 176,431.19

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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.