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Finding the Fourth Proportional to 124,137.63, 171,482.86 and 119,529.03

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Solution

The fourth proportional to 124,137.63, 171,482.86 and 119,529.03 is: 165,116.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,137.63 : 171,482.86 = 119,529.03 : x
  2. Step 2: Convert to fraction form
    124,137.63/171,482.86 = 119,529.03/x
  3. Step 3: Cross multiply
    124,137.63x = 171,482.86 × 119,529.03
  4. Step 4: Simplify right side
    124,137.63x = 20,497,179,319.78
  5. Step 5: Solve for x
    x = 20,497,179,319.78/124,137.63
  6. Step 6: Final answer
    x = 165,116.57

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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.