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Finding the Fourth Proportional to 223,203.79, 308,012.44 and 132,557.40

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Solution

The fourth proportional to 223,203.79, 308,012.44 and 132,557.40 is: 182,923.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,203.79 : 308,012.44 = 132,557.40 : x
  2. Step 2: Convert to fraction form
    223,203.79/308,012.44 = 132,557.40/x
  3. Step 3: Cross multiply
    223,203.79x = 308,012.44 × 132,557.40
  4. Step 4: Simplify right side
    223,203.79x = 40,829,328,214.06
  5. Step 5: Solve for x
    x = 40,829,328,214.06/223,203.79
  6. Step 6: Final answer
    x = 182,923.99

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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.