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Finding the Fourth Proportional to 349,481.58, 524,089.52 and 112,788.78

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Solution

The fourth proportional to 349,481.58, 524,089.52 and 112,788.78 is: 169,140.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,481.58 : 524,089.52 = 112,788.78 : x
  2. Step 2: Convert to fraction form
    349,481.58/524,089.52 = 112,788.78/x
  3. Step 3: Cross multiply
    349,481.58x = 524,089.52 × 112,788.78
  4. Step 4: Simplify right side
    349,481.58x = 59,111,417,571.59
  5. Step 5: Solve for x
    x = 59,111,417,571.59/349,481.58
  6. Step 6: Final answer
    x = 169,140.30

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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.