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Finding the Fourth Proportional to 112,519.51, 155,276.53 and 62,218.51

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Solution

The fourth proportional to 112,519.51, 155,276.53 and 62,218.51 is: 85,861.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,519.51 : 155,276.53 = 62,218.51 : x
  2. Step 2: Convert to fraction form
    112,519.51/155,276.53 = 62,218.51/x
  3. Step 3: Cross multiply
    112,519.51x = 155,276.53 × 62,218.51
  4. Step 4: Simplify right side
    112,519.51x = 9,661,074,334.57
  5. Step 5: Solve for x
    x = 9,661,074,334.57/112,519.51
  6. Step 6: Final answer
    x = 85,861.33

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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.