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Finding the Fourth Proportional to 55,671, 83,418.88 and 43,051.60

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Solution

The fourth proportional to 55,671, 83,418.88 and 43,051.60 is: 64,509.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,671 : 83,418.88 = 43,051.60 : x
  2. Step 2: Convert to fraction form
    55,671/83,418.88 = 43,051.60/x
  3. Step 3: Cross multiply
    55,671x = 83,418.88 × 43,051.60
  4. Step 4: Simplify right side
    55,671x = 3,591,316,254.21
  5. Step 5: Solve for x
    x = 3,591,316,254.21/55,671
  6. Step 6: Final answer
    x = 64,509.64

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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.