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Finding the Fourth Proportional to 186,574.93, 279,861 and 53,455.30

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Solution

The fourth proportional to 186,574.93, 279,861 and 53,455.30 is: 80,182.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,574.93 : 279,861 = 53,455.30 : x
  2. Step 2: Convert to fraction form
    186,574.93/279,861 = 53,455.30/x
  3. Step 3: Cross multiply
    186,574.93x = 279,861 × 53,455.30
  4. Step 4: Simplify right side
    186,574.93x = 14,960,053,713.30
  5. Step 5: Solve for x
    x = 14,960,053,713.30/186,574.93
  6. Step 6: Final answer
    x = 80,182.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.