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Finding the Fourth Proportional to 86,958.92, 119,959.44 and 51,126.14

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Solution

The fourth proportional to 86,958.92, 119,959.44 and 51,126.14 is: 70,528.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,958.92 : 119,959.44 = 51,126.14 : x
  2. Step 2: Convert to fraction form
    86,958.92/119,959.44 = 51,126.14/x
  3. Step 3: Cross multiply
    86,958.92x = 119,959.44 × 51,126.14
  4. Step 4: Simplify right side
    86,958.92x = 6,133,063,123.76
  5. Step 5: Solve for x
    x = 6,133,063,123.76/86,958.92
  6. Step 6: Final answer
    x = 70,528.28

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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.