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Finding the Fourth Proportional to 186,664.46, 279,996.71 and 74,423.50

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Solution

The fourth proportional to 186,664.46, 279,996.71 and 74,423.50 is: 111,635.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,664.46 : 279,996.71 = 74,423.50 : x
  2. Step 2: Convert to fraction form
    186,664.46/279,996.71 = 74,423.50/x
  3. Step 3: Cross multiply
    186,664.46x = 279,996.71 × 74,423.50
  4. Step 4: Simplify right side
    186,664.46x = 20,838,334,774.57
  5. Step 5: Solve for x
    x = 20,838,334,774.57/186,664.46
  6. Step 6: Final answer
    x = 111,635.25

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1.5x scale

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.