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Finding the Fourth Proportional to 106,361.60, 159,465.60 and 59,628.80

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Solution

The fourth proportional to 106,361.60, 159,465.60 and 59,628.80 is: 89,400.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,361.60 : 159,465.60 = 59,628.80 : x
  2. Step 2: Convert to fraction form
    106,361.60/159,465.60 = 59,628.80/x
  3. Step 3: Cross multiply
    106,361.60x = 159,465.60 × 59,628.80
  4. Step 4: Simplify right side
    106,361.60x = 9,508,742,369.28
  5. Step 5: Solve for x
    x = 9,508,742,369.28/106,361.60
  6. Step 6: Final answer
    x = 89,400.14

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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.