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Finding the Fourth Proportional to 83,953.66, 115,852.31 and 45,713.20

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Solution

The fourth proportional to 83,953.66, 115,852.31 and 45,713.20 is: 63,082.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,953.66 : 115,852.31 = 45,713.20 : x
  2. Step 2: Convert to fraction form
    83,953.66/115,852.31 = 45,713.20/x
  3. Step 3: Cross multiply
    83,953.66x = 115,852.31 × 45,713.20
  4. Step 4: Simplify right side
    83,953.66x = 5,295,979,817.49
  5. Step 5: Solve for x
    x = 5,295,979,817.49/83,953.66
  6. Step 6: Final answer
    x = 63,082.18

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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.