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Finding the Fourth Proportional to 371,443.52, 557,386.62 and 134,804.64

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Solution

The fourth proportional to 371,443.52, 557,386.62 and 134,804.64 is: 202,287.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,443.52 : 557,386.62 = 134,804.64 : x
  2. Step 2: Convert to fraction form
    371,443.52/557,386.62 = 134,804.64/x
  3. Step 3: Cross multiply
    371,443.52x = 557,386.62 × 134,804.64
  4. Step 4: Simplify right side
    371,443.52x = 75,138,302,649.92
  5. Step 5: Solve for x
    x = 75,138,302,649.92/371,443.52
  6. Step 6: Final answer
    x = 202,287.29

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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.