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Finding the Fourth Proportional to 123,525.63, 170,465.49 and 66,937.01

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Solution

The fourth proportional to 123,525.63, 170,465.49 and 66,937.01 is: 92,373.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,525.63 : 170,465.49 = 66,937.01 : x
  2. Step 2: Convert to fraction form
    123,525.63/170,465.49 = 66,937.01/x
  3. Step 3: Cross multiply
    123,525.63x = 170,465.49 × 66,937.01
  4. Step 4: Simplify right side
    123,525.63x = 11,410,449,647.63
  5. Step 5: Solve for x
    x = 11,410,449,647.63/123,525.63
  6. Step 6: Final answer
    x = 92,373.13

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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.