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Finding the Fourth Proportional to 186,275.70, 257,059.17 and 101,392.56

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Solution

The fourth proportional to 186,275.70, 257,059.17 and 101,392.56 is: 139,921.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,275.70 : 257,059.17 = 101,392.56 : x
  2. Step 2: Convert to fraction form
    186,275.70/257,059.17 = 101,392.56/x
  3. Step 3: Cross multiply
    186,275.70x = 257,059.17 × 101,392.56
  4. Step 4: Simplify right side
    186,275.70x = 26,063,887,317.78
  5. Step 5: Solve for x
    x = 26,063,887,317.78/186,275.70
  6. Step 6: Final answer
    x = 139,921.03

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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.