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Finding the Fourth Proportional to 198,568.98, 297,886.28 and 65,457.23

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Solution

The fourth proportional to 198,568.98, 297,886.28 and 65,457.23 is: 98,196.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,568.98 : 297,886.28 = 65,457.23 : x
  2. Step 2: Convert to fraction form
    198,568.98/297,886.28 = 65,457.23/x
  3. Step 3: Cross multiply
    198,568.98x = 297,886.28 × 65,457.23
  4. Step 4: Simplify right side
    198,568.98x = 19,498,808,927.09
  5. Step 5: Solve for x
    x = 19,498,808,927.09/198,568.98
  6. Step 6: Final answer
    x = 98,196.65

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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.