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Finding the Fourth Proportional to 186,487.60, 279,701.70 and 61,828.60

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Solution

The fourth proportional to 186,487.60, 279,701.70 and 61,828.60 is: 92,733.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,487.60 : 279,701.70 = 61,828.60 : x
  2. Step 2: Convert to fraction form
    186,487.60/279,701.70 = 61,828.60/x
  3. Step 3: Cross multiply
    186,487.60x = 279,701.70 × 61,828.60
  4. Step 4: Simplify right side
    186,487.60x = 17,293,564,528.62
  5. Step 5: Solve for x
    x = 17,293,564,528.62/186,487.60
  6. Step 6: Final answer
    x = 92,733.05

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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.