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Finding the Fourth Proportional to 107,361.44, 148,172.45 and 64,920.27

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Solution

The fourth proportional to 107,361.44, 148,172.45 and 64,920.27 is: 89,598.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,361.44 : 148,172.45 = 64,920.27 : x
  2. Step 2: Convert to fraction form
    107,361.44/148,172.45 = 64,920.27/x
  3. Step 3: Cross multiply
    107,361.44x = 148,172.45 × 64,920.27
  4. Step 4: Simplify right side
    107,361.44x = 9,619,395,460.56
  5. Step 5: Solve for x
    x = 9,619,395,460.56/107,361.44
  6. Step 6: Final answer
    x = 89,598.23

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1.5x scale

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.