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Finding the Fourth Proportional to 56,361.60, 84,464.64 and 42,495.36

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Solution

The fourth proportional to 56,361.60, 84,464.64 and 42,495.36 is: 63,684.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,361.60 : 84,464.64 = 42,495.36 : x
  2. Step 2: Convert to fraction form
    56,361.60/84,464.64 = 42,495.36/x
  3. Step 3: Cross multiply
    56,361.60x = 84,464.64 × 42,495.36
  4. Step 4: Simplify right side
    56,361.60x = 3,589,355,284.07
  5. Step 5: Solve for x
    x = 3,589,355,284.07/56,361.60
  6. Step 6: Final answer
    x = 63,684.41

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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.