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Finding the Fourth Proportional to 360,088.05, 540,247.46 and 252,129.86

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Solution

The fourth proportional to 360,088.05, 540,247.46 and 252,129.86 is: 378,275.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,088.05 : 540,247.46 = 252,129.86 : x
  2. Step 2: Convert to fraction form
    360,088.05/540,247.46 = 252,129.86/x
  3. Step 3: Cross multiply
    360,088.05x = 540,247.46 × 252,129.86
  4. Step 4: Simplify right side
    360,088.05x = 136,212,517,558.09
  5. Step 5: Solve for x
    x = 136,212,517,558.09/360,088.05
  6. Step 6: Final answer
    x = 378,275.59

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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.