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Finding the Fourth Proportional to 245,761.62, 368,785.80 and 103,598.25

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Solution

The fourth proportional to 245,761.62, 368,785.80 and 103,598.25 is: 155,457.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,761.62 : 368,785.80 = 103,598.25 : x
  2. Step 2: Convert to fraction form
    245,761.62/368,785.80 = 103,598.25/x
  3. Step 3: Cross multiply
    245,761.62x = 368,785.80 × 103,598.25
  4. Step 4: Simplify right side
    245,761.62x = 38,205,563,504.85
  5. Step 5: Solve for x
    x = 38,205,563,504.85/245,761.62
  6. Step 6: Final answer
    x = 155,457.81

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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.