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Finding the Fourth Proportional to 123,258.65, 170,093.47 and 69,548.66

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Solution

The fourth proportional to 123,258.65, 170,093.47 and 69,548.66 is: 95,975.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,258.65 : 170,093.47 = 69,548.66 : x
  2. Step 2: Convert to fraction form
    123,258.65/170,093.47 = 69,548.66/x
  3. Step 3: Cross multiply
    123,258.65x = 170,093.47 × 69,548.66
  4. Step 4: Simplify right side
    123,258.65x = 11,829,772,913.25
  5. Step 5: Solve for x
    x = 11,829,772,913.25/123,258.65
  6. Step 6: Final answer
    x = 95,975.19

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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.