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Finding the Fourth Proportional to 186,486.60, 279,700.20 and 61,827.60

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Solution

The fourth proportional to 186,486.60, 279,700.20 and 61,827.60 is: 92,731.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,486.60 : 279,700.20 = 61,827.60 : x
  2. Step 2: Convert to fraction form
    186,486.60/279,700.20 = 61,827.60/x
  3. Step 3: Cross multiply
    186,486.60x = 279,700.20 × 61,827.60
  4. Step 4: Simplify right side
    186,486.60x = 17,293,192,085.52
  5. Step 5: Solve for x
    x = 17,293,192,085.52/186,486.60
  6. Step 6: Final answer
    x = 92,731.55

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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.