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Finding the Fourth Proportional to 123,677.93, 170,675.60 and 69,961.80

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Solution

The fourth proportional to 123,677.93, 170,675.60 and 69,961.80 is: 96,547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,677.93 : 170,675.60 = 69,961.80 : x
  2. Step 2: Convert to fraction form
    123,677.93/170,675.60 = 69,961.80/x
  3. Step 3: Cross multiply
    123,677.93x = 170,675.60 × 69,961.80
  4. Step 4: Simplify right side
    123,677.93x = 11,940,772,192.08
  5. Step 5: Solve for x
    x = 11,940,772,192.08/123,677.93
  6. Step 6: Final answer
    x = 96,547.32

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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.