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Finding the Fourth Proportional to 186,645.53, 279,969.30 and 46,404.15

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Solution

The fourth proportional to 186,645.53, 279,969.30 and 46,404.15 is: 69,606.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,645.53 : 279,969.30 = 46,404.15 : x
  2. Step 2: Convert to fraction form
    186,645.53/279,969.30 = 46,404.15/x
  3. Step 3: Cross multiply
    186,645.53x = 279,969.30 × 46,404.15
  4. Step 4: Simplify right side
    186,645.53x = 12,991,737,392.60
  5. Step 5: Solve for x
    x = 12,991,737,392.60/186,645.53
  6. Step 6: Final answer
    x = 69,606.48

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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.