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Finding the Fourth Proportional to 186,630.70, 279,946.05 and 61,971.70

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Solution

The fourth proportional to 186,630.70, 279,946.05 and 61,971.70 is: 92,957.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,630.70 : 279,946.05 = 61,971.70 : x
  2. Step 2: Convert to fraction form
    186,630.70/279,946.05 = 61,971.70/x
  3. Step 3: Cross multiply
    186,630.70x = 279,946.05 × 61,971.70
  4. Step 4: Simplify right side
    186,630.70x = 17,348,732,626.79
  5. Step 5: Solve for x
    x = 17,348,732,626.79/186,630.70
  6. Step 6: Final answer
    x = 92,957.55

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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.