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Finding the Fourth Proportional to 112,960.63, 155,885.75 and 62,659.63

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Solution

The fourth proportional to 112,960.63, 155,885.75 and 62,659.63 is: 86,470.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,960.63 : 155,885.75 = 62,659.63 : x
  2. Step 2: Convert to fraction form
    112,960.63/155,885.75 = 62,659.63/x
  3. Step 3: Cross multiply
    112,960.63x = 155,885.75 × 62,659.63
  4. Step 4: Simplify right side
    112,960.63x = 9,767,743,417.27
  5. Step 5: Solve for x
    x = 9,767,743,417.27/112,960.63
  6. Step 6: Final answer
    x = 86,470.33

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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.