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Finding the Fourth Proportional to 112,711.34, 155,546.34 and 62,410.34

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Solution

The fourth proportional to 112,711.34, 155,546.34 and 62,410.34 is: 86,128.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,711.34 : 155,546.34 = 62,410.34 : x
  2. Step 2: Convert to fraction form
    112,711.34/155,546.34 = 62,410.34/x
  3. Step 3: Cross multiply
    112,711.34x = 155,546.34 × 62,410.34
  4. Step 4: Simplify right side
    112,711.34x = 9,707,699,965.16
  5. Step 5: Solve for x
    x = 9,707,699,965.16/112,711.34
  6. Step 6: Final answer
    x = 86,128.87

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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.