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Finding the Fourth Proportional to 113,482.62, 170,021.70 and 69,086.52

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Solution

The fourth proportional to 113,482.62, 170,021.70 and 69,086.52 is: 103,506.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,482.62 : 170,021.70 = 69,086.52 : x
  2. Step 2: Convert to fraction form
    113,482.62/170,021.70 = 69,086.52/x
  3. Step 3: Cross multiply
    113,482.62x = 170,021.70 × 69,086.52
  4. Step 4: Simplify right side
    113,482.62x = 11,746,207,577.48
  5. Step 5: Solve for x
    x = 11,746,207,577.48/113,482.62
  6. Step 6: Final answer
    x = 103,506.67

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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.