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Finding the Fourth Proportional to 99,164.80, 136,833.64 and 58,330.77

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Solution

The fourth proportional to 99,164.80, 136,833.64 and 58,330.77 is: 80,488.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,164.80 : 136,833.64 = 58,330.77 : x
  2. Step 2: Convert to fraction form
    99,164.80/136,833.64 = 58,330.77/x
  3. Step 3: Cross multiply
    99,164.80x = 136,833.64 × 58,330.77
  4. Step 4: Simplify right side
    99,164.80x = 7,981,611,291.45
  5. Step 5: Solve for x
    x = 7,981,611,291.45/99,164.80
  6. Step 6: Final answer
    x = 80,488.36

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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.