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Finding the Fourth Proportional to 117,074.71, 175,612.52 and 28,328.07

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Solution

The fourth proportional to 117,074.71, 175,612.52 and 28,328.07 is: 42,492.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,074.71 : 175,612.52 = 28,328.07 : x
  2. Step 2: Convert to fraction form
    117,074.71/175,612.52 = 28,328.07/x
  3. Step 3: Cross multiply
    117,074.71x = 175,612.52 × 28,328.07
  4. Step 4: Simplify right side
    117,074.71x = 4,974,763,759.44
  5. Step 5: Solve for x
    x = 4,974,763,759.44/117,074.71
  6. Step 6: Final answer
    x = 42,492.22

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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.