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Finding the Fourth Proportional to 123,232, 170,059.44 and 66,643.20

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Solution

The fourth proportional to 123,232, 170,059.44 and 66,643.20 is: 91,967.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,232 : 170,059.44 = 66,643.20 : x
  2. Step 2: Convert to fraction form
    123,232/170,059.44 = 66,643.20/x
  3. Step 3: Cross multiply
    123,232x = 170,059.44 × 66,643.20
  4. Step 4: Simplify right side
    123,232x = 11,333,305,271.81
  5. Step 5: Solve for x
    x = 11,333,305,271.81/123,232
  6. Step 6: Final answer
    x = 91,967.23

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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.