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Finding the Fourth Proportional to 116,454.90, 160,687.70 and 65,460.56

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Solution

The fourth proportional to 116,454.90, 160,687.70 and 65,460.56 is: 90,324.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,454.90 : 160,687.70 = 65,460.56 : x
  2. Step 2: Convert to fraction form
    116,454.90/160,687.70 = 65,460.56/x
  3. Step 3: Cross multiply
    116,454.90x = 160,687.70 × 65,460.56
  4. Step 4: Simplify right side
    116,454.90x = 10,518,705,941.85
  5. Step 5: Solve for x
    x = 10,518,705,941.85/116,454.90
  6. Step 6: Final answer
    x = 90,324.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.