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Finding the Fourth Proportional to 186,532.75, 257,415.20 and 101,649.84

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Solution

The fourth proportional to 186,532.75, 257,415.20 and 101,649.84 is: 140,276.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,532.75 : 257,415.20 = 101,649.84 : x
  2. Step 2: Convert to fraction form
    186,532.75/257,415.20 = 101,649.84/x
  3. Step 3: Cross multiply
    186,532.75x = 257,415.20 × 101,649.84
  4. Step 4: Simplify right side
    186,532.75x = 26,166,213,893.57
  5. Step 5: Solve for x
    x = 26,166,213,893.57/186,532.75
  6. Step 6: Final answer
    x = 140,276.78

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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.