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Finding the Fourth Proportional to 349,512, 524,134.72 and 124,830.56

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Solution

The fourth proportional to 349,512, 524,134.72 and 124,830.56 is: 187,198.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,512 : 524,134.72 = 124,830.56 : x
  2. Step 2: Convert to fraction form
    349,512/524,134.72 = 124,830.56/x
  3. Step 3: Cross multiply
    349,512x = 524,134.72 × 124,830.56
  4. Step 4: Simplify right side
    349,512x = 65,428,030,613.04
  5. Step 5: Solve for x
    x = 65,428,030,613.04/349,512
  6. Step 6: Final answer
    x = 187,198.24

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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.