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Finding the Fourth Proportional to 349,378.65, 524,178.72 and 124,734.24

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Solution

The fourth proportional to 349,378.65, 524,178.72 and 124,734.24 is: 187,140.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,378.65 : 524,178.72 = 124,734.24 : x
  2. Step 2: Convert to fraction form
    349,378.65/524,178.72 = 124,734.24/x
  3. Step 3: Cross multiply
    349,378.65x = 524,178.72 × 124,734.24
  4. Step 4: Simplify right side
    349,378.65x = 65,383,034,263.37
  5. Step 5: Solve for x
    x = 65,383,034,263.37/349,378.65
  6. Step 6: Final answer
    x = 187,140.90

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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.