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Finding the Fourth Proportional to 103,687.30, 155,492.07 and 44,492.50

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Solution

The fourth proportional to 103,687.30, 155,492.07 and 44,492.50 is: 66,722.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,687.30 : 155,492.07 = 44,492.50 : x
  2. Step 2: Convert to fraction form
    103,687.30/155,492.07 = 44,492.50/x
  3. Step 3: Cross multiply
    103,687.30x = 155,492.07 × 44,492.50
  4. Step 4: Simplify right side
    103,687.30x = 6,918,230,924.48
  5. Step 5: Solve for x
    x = 6,918,230,924.48/103,687.30
  6. Step 6: Final answer
    x = 66,722.07

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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.