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Finding the Fourth Proportional to 186,495.52, 257,159.88 and 125,961.06

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Solution

The fourth proportional to 186,495.52, 257,159.88 and 125,961.06 is: 173,688.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,495.52 : 257,159.88 = 125,961.06 : x
  2. Step 2: Convert to fraction form
    186,495.52/257,159.88 = 125,961.06/x
  3. Step 3: Cross multiply
    186,495.52x = 257,159.88 × 125,961.06
  4. Step 4: Simplify right side
    186,495.52x = 32,392,131,074.27
  5. Step 5: Solve for x
    x = 32,392,131,074.27/186,495.52
  6. Step 6: Final answer
    x = 173,688.52

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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.