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Finding the Fourth Proportional to 115,361.16, 159,198.36 and 65,060.16

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Solution

The fourth proportional to 115,361.16, 159,198.36 and 65,060.16 is: 89,783.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,361.16 : 159,198.36 = 65,060.16 : x
  2. Step 2: Convert to fraction form
    115,361.16/159,198.36 = 65,060.16/x
  3. Step 3: Cross multiply
    115,361.16x = 159,198.36 × 65,060.16
  4. Step 4: Simplify right side
    115,361.16x = 10,357,470,773.34
  5. Step 5: Solve for x
    x = 10,357,470,773.34/115,361.16
  6. Step 6: Final answer
    x = 89,783.00

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Why These Related Problems?

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