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Finding the Fourth Proportional to 371,443.39, 557,386.43 and 134,804.52

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Solution

The fourth proportional to 371,443.39, 557,386.43 and 134,804.52 is: 202,287.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,443.39 : 557,386.43 = 134,804.52 : x
  2. Step 2: Convert to fraction form
    371,443.39/557,386.43 = 134,804.52/x
  3. Step 3: Cross multiply
    371,443.39x = 557,386.43 × 134,804.52
  4. Step 4: Simplify right side
    371,443.39x = 75,138,210,150.66
  5. Step 5: Solve for x
    x = 75,138,210,150.66/371,443.39
  6. Step 6: Final answer
    x = 202,287.11

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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.