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Finding the Fourth Proportional to 205,710.68, 308,455.06 and 93,329.56

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Solution

The fourth proportional to 205,710.68, 308,455.06 and 93,329.56 is: 139,944.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,710.68 : 308,455.06 = 93,329.56 : x
  2. Step 2: Convert to fraction form
    205,710.68/308,455.06 = 93,329.56/x
  3. Step 3: Cross multiply
    205,710.68x = 308,455.06 × 93,329.56
  4. Step 4: Simplify right side
    205,710.68x = 28,787,975,029.57
  5. Step 5: Solve for x
    x = 28,787,975,029.57/205,710.68
  6. Step 6: Final answer
    x = 139,944.00

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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.