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Finding the Fourth Proportional to 173,999.70, 260,999.55 and 154,170.90

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Solution

The fourth proportional to 173,999.70, 260,999.55 and 154,170.90 is: 231,256.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,999.70 : 260,999.55 = 154,170.90 : x
  2. Step 2: Convert to fraction form
    173,999.70/260,999.55 = 154,170.90/x
  3. Step 3: Cross multiply
    173,999.70x = 260,999.55 × 154,170.90
  4. Step 4: Simplify right side
    173,999.70x = 40,238,535,523.10
  5. Step 5: Solve for x
    x = 40,238,535,523.10/173,999.70
  6. Step 6: Final answer
    x = 231,256.35

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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.