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Finding the Fourth Proportional to 112,436.70, 168,460.65 and 53,144.70

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Solution

The fourth proportional to 112,436.70, 168,460.65 and 53,144.70 is: 79,625.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,436.70 : 168,460.65 = 53,144.70 : x
  2. Step 2: Convert to fraction form
    112,436.70/168,460.65 = 53,144.70/x
  3. Step 3: Cross multiply
    112,436.70x = 168,460.65 × 53,144.70
  4. Step 4: Simplify right side
    112,436.70x = 8,952,790,706.06
  5. Step 5: Solve for x
    x = 8,952,790,706.06/112,436.70
  6. Step 6: Final answer
    x = 79,625.16

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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.