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Finding the Fourth Proportional to 192,055.80, 288,083.70 and 186,871.80

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Solution

The fourth proportional to 192,055.80, 288,083.70 and 186,871.80 is: 280,307.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,055.80 : 288,083.70 = 186,871.80 : x
  2. Step 2: Convert to fraction form
    192,055.80/288,083.70 = 186,871.80/x
  3. Step 3: Cross multiply
    192,055.80x = 288,083.70 × 186,871.80
  4. Step 4: Simplify right side
    192,055.80x = 53,834,719,569.66
  5. Step 5: Solve for x
    x = 53,834,719,569.66/192,055.80
  6. Step 6: Final answer
    x = 280,307.70

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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.