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Finding the Fourth Proportional to 104,655.42, 156,981.78 and 25,770.33

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Solution

The fourth proportional to 104,655.42, 156,981.78 and 25,770.33 is: 38,655.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,655.42 : 156,981.78 = 25,770.33 : x
  2. Step 2: Convert to fraction form
    104,655.42/156,981.78 = 25,770.33/x
  3. Step 3: Cross multiply
    104,655.42x = 156,981.78 × 25,770.33
  4. Step 4: Simplify right side
    104,655.42x = 4,045,472,274.59
  5. Step 5: Solve for x
    x = 4,045,472,274.59/104,655.42
  6. Step 6: Final answer
    x = 38,655.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.