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Finding the Fourth Proportional to 69,216.84, 103,907.52 and 58,259.88

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Solution

The fourth proportional to 69,216.84, 103,907.52 and 58,259.88 is: 87,459.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,216.84 : 103,907.52 = 58,259.88 : x
  2. Step 2: Convert to fraction form
    69,216.84/103,907.52 = 58,259.88/x
  3. Step 3: Cross multiply
    69,216.84x = 103,907.52 × 58,259.88
  4. Step 4: Simplify right side
    69,216.84x = 6,053,639,646.30
  5. Step 5: Solve for x
    x = 6,053,639,646.30/69,216.84
  6. Step 6: Final answer
    x = 87,459.06

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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.