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Finding the Fourth Proportional to 186,281.28, 279,419.16 and 46,039.86

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Solution

The fourth proportional to 186,281.28, 279,419.16 and 46,039.86 is: 69,059.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,281.28 : 279,419.16 = 46,039.86 : x
  2. Step 2: Convert to fraction form
    186,281.28/279,419.16 = 46,039.86/x
  3. Step 3: Cross multiply
    186,281.28x = 279,419.16 × 46,039.86
  4. Step 4: Simplify right side
    186,281.28x = 12,864,419,007.72
  5. Step 5: Solve for x
    x = 12,864,419,007.72/186,281.28
  6. Step 6: Final answer
    x = 69,059.11

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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.