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Finding the Fourth Proportional to 124,633.52, 171,967.98 and 79,295

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Solution

The fourth proportional to 124,633.52, 171,967.98 and 79,295 is: 109,410.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,633.52 : 171,967.98 = 79,295 : x
  2. Step 2: Convert to fraction form
    124,633.52/171,967.98 = 79,295/x
  3. Step 3: Cross multiply
    124,633.52x = 171,967.98 × 79,295
  4. Step 4: Simplify right side
    124,633.52x = 13,636,200,974.10
  5. Step 5: Solve for x
    x = 13,636,200,974.10/124,633.52
  6. Step 6: Final answer
    x = 109,410.38

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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.