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Finding the Fourth Proportional to 123,541.92, 170,486.63 and 69,093.48

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Solution

The fourth proportional to 123,541.92, 170,486.63 and 69,093.48 is: 95,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,541.92 : 170,486.63 = 69,093.48 : x
  2. Step 2: Convert to fraction form
    123,541.92/170,486.63 = 69,093.48/x
  3. Step 3: Cross multiply
    123,541.92x = 170,486.63 × 69,093.48
  4. Step 4: Simplify right side
    123,541.92x = 11,779,514,214.71
  5. Step 5: Solve for x
    x = 11,779,514,214.71/123,541.92
  6. Step 6: Final answer
    x = 95,348.32

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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.