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Finding the Fourth Proportional to 371,419.02, 557,212.37 and 134,761.32

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Solution

The fourth proportional to 371,419.02, 557,212.37 and 134,761.32 is: 202,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,419.02 : 557,212.37 = 134,761.32 : x
  2. Step 2: Convert to fraction form
    371,419.02/557,212.37 = 134,761.32/x
  3. Step 3: Cross multiply
    371,419.02x = 557,212.37 × 134,761.32
  4. Step 4: Simplify right side
    371,419.02x = 75,090,673,827.72
  5. Step 5: Solve for x
    x = 75,090,673,827.72/371,419.02
  6. Step 6: Final answer
    x = 202,172.40

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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.