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Finding the Fourth Proportional to 186,496.78, 257,361.96 and 101,612.02

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Solution

The fourth proportional to 186,496.78, 257,361.96 and 101,612.02 is: 140,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,496.78 : 257,361.96 = 101,612.02 : x
  2. Step 2: Convert to fraction form
    186,496.78/257,361.96 = 101,612.02/x
  3. Step 3: Cross multiply
    186,496.78x = 257,361.96 × 101,612.02
  4. Step 4: Simplify right side
    186,496.78x = 26,151,068,626.76
  5. Step 5: Solve for x
    x = 26,151,068,626.76/186,496.78
  6. Step 6: Final answer
    x = 140,222.63

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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.