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Finding the Fourth Proportional to 173,874.60, 260,811.90 and 74,038.05

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Solution

The fourth proportional to 173,874.60, 260,811.90 and 74,038.05 is: 111,057.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,874.60 : 260,811.90 = 74,038.05 : x
  2. Step 2: Convert to fraction form
    173,874.60/260,811.90 = 74,038.05/x
  3. Step 3: Cross multiply
    173,874.60x = 260,811.90 × 74,038.05
  4. Step 4: Simplify right side
    173,874.60x = 19,310,004,492.80
  5. Step 5: Solve for x
    x = 19,310,004,492.80/173,874.60
  6. Step 6: Final answer
    x = 111,057.08

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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.