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Finding the Fourth Proportional to 107,361.80, 160,848.30 and 91,809.80

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Solution

The fourth proportional to 107,361.80, 160,848.30 and 91,809.80 is: 137,548.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,361.80 : 160,848.30 = 91,809.80 : x
  2. Step 2: Convert to fraction form
    107,361.80/160,848.30 = 91,809.80/x
  3. Step 3: Cross multiply
    107,361.80x = 160,848.30 × 91,809.80
  4. Step 4: Simplify right side
    107,361.80x = 14,767,450,253.34
  5. Step 5: Solve for x
    x = 14,767,450,253.34/107,361.80
  6. Step 6: Final answer
    x = 137,548.46

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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.