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Finding the Fourth Proportional to 186,890.40, 280,335.60 and 167,207.40

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Solution

The fourth proportional to 186,890.40, 280,335.60 and 167,207.40 is: 250,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,890.40 : 280,335.60 = 167,207.40 : x
  2. Step 2: Convert to fraction form
    186,890.40/280,335.60 = 167,207.40/x
  3. Step 3: Cross multiply
    186,890.40x = 280,335.60 × 167,207.40
  4. Step 4: Simplify right side
    186,890.40x = 46,874,186,803.44
  5. Step 5: Solve for x
    x = 46,874,186,803.44/186,890.40
  6. Step 6: Final answer
    x = 250,811.10

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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.