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Finding the Fourth Proportional to 248,529.70, 372,903.90 and 115,341.40

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Solution

The fourth proportional to 248,529.70, 372,903.90 and 115,341.40 is: 173,062.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,529.70 : 372,903.90 = 115,341.40 : x
  2. Step 2: Convert to fraction form
    248,529.70/372,903.90 = 115,341.40/x
  3. Step 3: Cross multiply
    248,529.70x = 372,903.90 × 115,341.40
  4. Step 4: Simplify right side
    248,529.70x = 43,011,257,891.46
  5. Step 5: Solve for x
    x = 43,011,257,891.46/248,529.70
  6. Step 6: Final answer
    x = 173,062.85

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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.