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Finding the Fourth Proportional to 103,482.75, 142,806.38 and 58,770.75

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Solution

The fourth proportional to 103,482.75, 142,806.38 and 58,770.75 is: 81,103.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,482.75 : 142,806.38 = 58,770.75 : x
  2. Step 2: Convert to fraction form
    103,482.75/142,806.38 = 58,770.75/x
  3. Step 3: Cross multiply
    103,482.75x = 142,806.38 × 58,770.75
  4. Step 4: Simplify right side
    103,482.75x = 8,392,837,763.53
  5. Step 5: Solve for x
    x = 8,392,837,763.53/103,482.75
  6. Step 6: Final answer
    x = 81,103.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.