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Finding the Fourth Proportional to 245,568.18, 368,315.76 and 68,056.68

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Solution

The fourth proportional to 245,568.18, 368,315.76 and 68,056.68 is: 102,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,568.18 : 368,315.76 = 68,056.68 : x
  2. Step 2: Convert to fraction form
    245,568.18/368,315.76 = 68,056.68/x
  3. Step 3: Cross multiply
    245,568.18x = 368,315.76 × 68,056.68
  4. Step 4: Simplify right side
    245,568.18x = 25,066,347,817.28
  5. Step 5: Solve for x
    x = 25,066,347,817.28/245,568.18
  6. Step 6: Final answer
    x = 102,074.90

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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.