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Finding the Fourth Proportional to 124,368.35, 171,655.94 and 79,037.44

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Solution

The fourth proportional to 124,368.35, 171,655.94 and 79,037.44 is: 109,089.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,368.35 : 171,655.94 = 79,037.44 : x
  2. Step 2: Convert to fraction form
    124,368.35/171,655.94 = 79,037.44/x
  3. Step 3: Cross multiply
    124,368.35x = 171,655.94 × 79,037.44
  4. Step 4: Simplify right side
    124,368.35x = 13,567,245,826.85
  5. Step 5: Solve for x
    x = 13,567,245,826.85/124,368.35
  6. Step 6: Final answer
    x = 109,089.22

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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.