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Finding the Fourth Proportional to 112,667.76, 168,990.70 and 29,561.76

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Solution

The fourth proportional to 112,667.76, 168,990.70 and 29,561.76 is: 44,339.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,667.76 : 168,990.70 = 29,561.76 : x
  2. Step 2: Convert to fraction form
    112,667.76/168,990.70 = 29,561.76/x
  3. Step 3: Cross multiply
    112,667.76x = 168,990.70 × 29,561.76
  4. Step 4: Simplify right side
    112,667.76x = 4,995,662,515.63
  5. Step 5: Solve for x
    x = 4,995,662,515.63/112,667.76
  6. Step 6: Final answer
    x = 44,339.77

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1.5x scale

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.