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Finding the Fourth Proportional to 186,915.64, 280,373.42 and 103,208.04

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Solution

The fourth proportional to 186,915.64, 280,373.42 and 103,208.04 is: 154,812.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,915.64 : 280,373.42 = 103,208.04 : x
  2. Step 2: Convert to fraction form
    186,915.64/280,373.42 = 103,208.04/x
  3. Step 3: Cross multiply
    186,915.64x = 280,373.42 × 103,208.04
  4. Step 4: Simplify right side
    186,915.64x = 28,936,791,146.30
  5. Step 5: Solve for x
    x = 28,936,791,146.30/186,915.64
  6. Step 6: Final answer
    x = 154,812.04

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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.