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Finding the Fourth Proportional to 123,465.94, 170,369.33 and 69,739.58

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Solution

The fourth proportional to 123,465.94, 170,369.33 and 69,739.58 is: 96,232.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,465.94 : 170,369.33 = 69,739.58 : x
  2. Step 2: Convert to fraction form
    123,465.94/170,369.33 = 69,739.58/x
  3. Step 3: Cross multiply
    123,465.94x = 170,369.33 × 69,739.58
  4. Step 4: Simplify right side
    123,465.94x = 11,881,485,596.31
  5. Step 5: Solve for x
    x = 11,881,485,596.31/123,465.94
  6. Step 6: Final answer
    x = 96,232.90

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1.5x scale

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.