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Finding the Fourth Proportional to 215,395.92, 297,239.40 and 119,899.44

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Solution

The fourth proportional to 215,395.92, 297,239.40 and 119,899.44 is: 165,457.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,395.92 : 297,239.40 = 119,899.44 : x
  2. Step 2: Convert to fraction form
    215,395.92/297,239.40 = 119,899.44/x
  3. Step 3: Cross multiply
    215,395.92x = 297,239.40 × 119,899.44
  4. Step 4: Simplify right side
    215,395.92x = 35,638,837,605.94
  5. Step 5: Solve for x
    x = 35,638,837,605.94/215,395.92
  6. Step 6: Final answer
    x = 165,457.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.