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Finding the Fourth Proportional to 349,343.40, 524,125.89 and 124,698.90

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Solution

The fourth proportional to 349,343.40, 524,125.89 and 124,698.90 is: 187,087.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,343.40 : 524,125.89 = 124,698.90 : x
  2. Step 2: Convert to fraction form
    349,343.40/524,125.89 = 124,698.90/x
  3. Step 3: Cross multiply
    349,343.40x = 524,125.89 × 124,698.90
  4. Step 4: Simplify right side
    349,343.40x = 65,357,921,944.52
  5. Step 5: Solve for x
    x = 65,357,921,944.52/349,343.40
  6. Step 6: Final answer
    x = 187,087.90

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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.