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Finding the Fourth Proportional to 371,808.09, 557,710.77 and 105,568.64

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Solution

The fourth proportional to 371,808.09, 557,710.77 and 105,568.64 is: 158,352.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,808.09 : 557,710.77 = 105,568.64 : x
  2. Step 2: Convert to fraction form
    371,808.09/557,710.77 = 105,568.64/x
  3. Step 3: Cross multiply
    371,808.09x = 557,710.77 × 105,568.64
  4. Step 4: Simplify right side
    371,808.09x = 58,876,767,201.00
  5. Step 5: Solve for x
    x = 58,876,767,201.00/371,808.09
  6. Step 6: Final answer
    x = 158,352.57

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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.