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Finding the Fourth Proportional to 83,484.56, 115,207.44 and 45,758.88

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Solution

The fourth proportional to 83,484.56, 115,207.44 and 45,758.88 is: 63,146.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,484.56 : 115,207.44 = 45,758.88 : x
  2. Step 2: Convert to fraction form
    83,484.56/115,207.44 = 45,758.88/x
  3. Step 3: Cross multiply
    83,484.56x = 115,207.44 × 45,758.88
  4. Step 4: Simplify right side
    83,484.56x = 5,271,763,422.07
  5. Step 5: Solve for x
    x = 5,271,763,422.07/83,484.56
  6. Step 6: Final answer
    x = 63,146.57

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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.