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Finding the Fourth Proportional to 386,574.76, 579,772.38 and 106,114.60

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Solution

The fourth proportional to 386,574.76, 579,772.38 and 106,114.60 is: 159,147.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,574.76 : 579,772.38 = 106,114.60 : x
  2. Step 2: Convert to fraction form
    386,574.76/579,772.38 = 106,114.60/x
  3. Step 3: Cross multiply
    386,574.76x = 579,772.38 × 106,114.60
  4. Step 4: Simplify right side
    386,574.76x = 61,522,314,194.75
  5. Step 5: Solve for x
    x = 61,522,314,194.75/386,574.76
  6. Step 6: Final answer
    x = 159,147.26

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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.