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Finding the Fourth Proportional to 198,436.77, 297,696.15 and 65,325.03

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Solution

The fourth proportional to 198,436.77, 297,696.15 and 65,325.03 is: 98,001.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,436.77 : 297,696.15 = 65,325.03 : x
  2. Step 2: Convert to fraction form
    198,436.77/297,696.15 = 65,325.03/x
  3. Step 3: Cross multiply
    198,436.77x = 297,696.15 × 65,325.03
  4. Step 4: Simplify right side
    198,436.77x = 19,447,009,929.63
  5. Step 5: Solve for x
    x = 19,447,009,929.63/198,436.77
  6. Step 6: Final answer
    x = 98,001.04

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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.