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Finding the Fourth Proportional to 186,443.22, 279,573.30 and 79,812.12

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Solution

The fourth proportional to 186,443.22, 279,573.30 and 79,812.12 is: 119,679.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,443.22 : 279,573.30 = 79,812.12 : x
  2. Step 2: Convert to fraction form
    186,443.22/279,573.30 = 79,812.12/x
  3. Step 3: Cross multiply
    186,443.22x = 279,573.30 × 79,812.12
  4. Step 4: Simplify right side
    186,443.22x = 22,313,337,768.40
  5. Step 5: Solve for x
    x = 22,313,337,768.40/186,443.22
  6. Step 6: Final answer
    x = 119,679.00

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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.