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Finding the Fourth Proportional to 186,384.56, 279,620.56 and 61,725.60

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Solution

The fourth proportional to 186,384.56, 279,620.56 and 61,725.60 is: 92,602.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,384.56 : 279,620.56 = 61,725.60 : x
  2. Step 2: Convert to fraction form
    186,384.56/279,620.56 = 61,725.60/x
  3. Step 3: Cross multiply
    186,384.56x = 279,620.56 × 61,725.60
  4. Step 4: Simplify right side
    186,384.56x = 17,259,746,838.34
  5. Step 5: Solve for x
    x = 17,259,746,838.34/186,384.56
  6. Step 6: Final answer
    x = 92,602.88

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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.