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Finding the Fourth Proportional to 186,612, 257,558.31 and 110,126.40

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Solution

The fourth proportional to 186,612, 257,558.31 and 110,126.40 is: 151,994.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,612 : 257,558.31 = 110,126.40 : x
  2. Step 2: Convert to fraction form
    186,612/257,558.31 = 110,126.40/x
  3. Step 3: Cross multiply
    186,612x = 257,558.31 × 110,126.40
  4. Step 4: Simplify right side
    186,612x = 28,363,969,470.38
  5. Step 5: Solve for x
    x = 28,363,969,470.38/186,612
  6. Step 6: Final answer
    x = 151,994.35

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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.