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Finding the Fourth Proportional to 173,922.60, 260,912.70 and 74,130.60

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Solution

The fourth proportional to 173,922.60, 260,912.70 and 74,130.60 is: 111,208.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,922.60 : 260,912.70 = 74,130.60 : x
  2. Step 2: Convert to fraction form
    173,922.60/260,912.70 = 74,130.60/x
  3. Step 3: Cross multiply
    173,922.60x = 260,912.70 × 74,130.60
  4. Step 4: Simplify right side
    173,922.60x = 19,341,614,998.62
  5. Step 5: Solve for x
    x = 19,341,614,998.62/173,922.60
  6. Step 6: Final answer
    x = 111,208.18

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1.5x scale

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.