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Finding the Fourth Proportional to 192,597, 265,820.58 and 129,045.64

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Solution

The fourth proportional to 192,597, 265,820.58 and 129,045.64 is: 178,107.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,597 : 265,820.58 = 129,045.64 : x
  2. Step 2: Convert to fraction form
    192,597/265,820.58 = 129,045.64/x
  3. Step 3: Cross multiply
    192,597x = 265,820.58 × 129,045.64
  4. Step 4: Simplify right side
    192,597x = 34,302,986,871.27
  5. Step 5: Solve for x
    x = 34,302,986,871.27/192,597
  6. Step 6: Final answer
    x = 178,107.59

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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.