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Finding the Fourth Proportional to 337,271.20, 505,935.60 and 115,655.20

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Solution

The fourth proportional to 337,271.20, 505,935.60 and 115,655.20 is: 173,492.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,271.20 : 505,935.60 = 115,655.20 : x
  2. Step 2: Convert to fraction form
    337,271.20/505,935.60 = 115,655.20/x
  3. Step 3: Cross multiply
    337,271.20x = 505,935.60 × 115,655.20
  4. Step 4: Simplify right side
    337,271.20x = 58,514,083,005.12
  5. Step 5: Solve for x
    x = 58,514,083,005.12/337,271.20
  6. Step 6: Final answer
    x = 173,492.68

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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.