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Finding the Fourth Proportional to 106,651.80, 147,178.62 and 58,908.42

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Solution

The fourth proportional to 106,651.80, 147,178.62 and 58,908.42 is: 81,293.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,651.80 : 147,178.62 = 58,908.42 : x
  2. Step 2: Convert to fraction form
    106,651.80/147,178.62 = 58,908.42/x
  3. Step 3: Cross multiply
    106,651.80x = 147,178.62 × 58,908.42
  4. Step 4: Simplify right side
    106,651.80x = 8,670,059,961.98
  5. Step 5: Solve for x
    x = 8,670,059,961.98/106,651.80
  6. Step 6: Final answer
    x = 81,293.14

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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.