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Finding the Fourth Proportional to 83,151.51, 114,748.87 and 45,426.03

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Solution

The fourth proportional to 83,151.51, 114,748.87 and 45,426.03 is: 62,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,151.51 : 114,748.87 = 45,426.03 : x
  2. Step 2: Convert to fraction form
    83,151.51/114,748.87 = 45,426.03/x
  3. Step 3: Cross multiply
    83,151.51x = 114,748.87 × 45,426.03
  4. Step 4: Simplify right side
    83,151.51x = 5,212,585,611.09
  5. Step 5: Solve for x
    x = 5,212,585,611.09/83,151.51
  6. Step 6: Final answer
    x = 62,687.80

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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.