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Finding the Fourth Proportional to 86,283.84, 119,047.69 and 51,819.37

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Solution

The fourth proportional to 86,283.84, 119,047.69 and 51,819.37 is: 71,496.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,283.84 : 119,047.69 = 51,819.37 : x
  2. Step 2: Convert to fraction form
    86,283.84/119,047.69 = 51,819.37/x
  3. Step 3: Cross multiply
    86,283.84x = 119,047.69 × 51,819.37
  4. Step 4: Simplify right side
    86,283.84x = 6,168,976,295.76
  5. Step 5: Solve for x
    x = 6,168,976,295.76/86,283.84
  6. Step 6: Final answer
    x = 71,496.31

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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.