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Finding the Fourth Proportional to 69,783.40, 104,559.90 and 59,415.40

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Solution

The fourth proportional to 69,783.40, 104,559.90 and 59,415.40 is: 89,025.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,783.40 : 104,559.90 = 59,415.40 : x
  2. Step 2: Convert to fraction form
    69,783.40/104,559.90 = 59,415.40/x
  3. Step 3: Cross multiply
    69,783.40x = 104,559.90 × 59,415.40
  4. Step 4: Simplify right side
    69,783.40x = 6,212,468,282.46
  5. Step 5: Solve for x
    x = 6,212,468,282.46/69,783.40
  6. Step 6: Final answer
    x = 89,025.02

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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.