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Finding the Fourth Proportional to 186,638.57, 279,958.90 and 46,397.19

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Solution

The fourth proportional to 186,638.57, 279,958.90 and 46,397.19 is: 69,596.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,638.57 : 279,958.90 = 46,397.19 : x
  2. Step 2: Convert to fraction form
    186,638.57/279,958.90 = 46,397.19/x
  3. Step 3: Cross multiply
    186,638.57x = 279,958.90 × 46,397.19
  4. Step 4: Simplify right side
    186,638.57x = 12,989,306,275.49
  5. Step 5: Solve for x
    x = 12,989,306,275.49/186,638.57
  6. Step 6: Final answer
    x = 69,596.04

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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.