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Finding the Fourth Proportional to 113,597.69, 170,208.14 and 69,089.81

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Solution

The fourth proportional to 113,597.69, 170,208.14 and 69,089.81 is: 103,520.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,597.69 : 170,208.14 = 69,089.81 : x
  2. Step 2: Convert to fraction form
    113,597.69/170,208.14 = 69,089.81/x
  3. Step 3: Cross multiply
    113,597.69x = 170,208.14 × 69,089.81
  4. Step 4: Simplify right side
    113,597.69x = 11,759,646,856.56
  5. Step 5: Solve for x
    x = 11,759,646,856.56/113,597.69
  6. Step 6: Final answer
    x = 103,520.13

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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.