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Finding the Fourth Proportional to 123,355.02, 170,241.14 and 69,653.22

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Solution

The fourth proportional to 123,355.02, 170,241.14 and 69,653.22 is: 96,127.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,355.02 : 170,241.14 = 69,653.22 : x
  2. Step 2: Convert to fraction form
    123,355.02/170,241.14 = 69,653.22/x
  3. Step 3: Cross multiply
    123,355.02x = 170,241.14 × 69,653.22
  4. Step 4: Simplify right side
    123,355.02x = 11,857,843,577.47
  5. Step 5: Solve for x
    x = 11,857,843,577.47/123,355.02
  6. Step 6: Final answer
    x = 96,127.77

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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.