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Finding the Fourth Proportional to 200,599.76, 300,582.72 and 74,065.61

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Solution

The fourth proportional to 200,599.76, 300,582.72 and 74,065.61 is: 110,981.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,599.76 : 300,582.72 = 74,065.61 : x
  2. Step 2: Convert to fraction form
    200,599.76/300,582.72 = 74,065.61/x
  3. Step 3: Cross multiply
    200,599.76x = 300,582.72 × 74,065.61
  4. Step 4: Simplify right side
    200,599.76x = 22,262,840,639.02
  5. Step 5: Solve for x
    x = 22,262,840,639.02/200,599.76
  6. Step 6: Final answer
    x = 110,981.39

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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.