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Finding the Fourth Proportional to 84,084.59, 125,954.55 and 67,354.04

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Solution

The fourth proportional to 84,084.59, 125,954.55 and 67,354.04 is: 100,893.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,084.59 : 125,954.55 = 67,354.04 : x
  2. Step 2: Convert to fraction form
    84,084.59/125,954.55 = 67,354.04/x
  3. Step 3: Cross multiply
    84,084.59x = 125,954.55 × 67,354.04
  4. Step 4: Simplify right side
    84,084.59x = 8,483,547,169.11
  5. Step 5: Solve for x
    x = 8,483,547,169.11/84,084.59
  6. Step 6: Final answer
    x = 100,893.01

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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.