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Finding the Fourth Proportional to 86,509.89, 119,392.79 and 50,701.41

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Solution

The fourth proportional to 86,509.89, 119,392.79 and 50,701.41 is: 69,973.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,509.89 : 119,392.79 = 50,701.41 : x
  2. Step 2: Convert to fraction form
    86,509.89/119,392.79 = 50,701.41/x
  3. Step 3: Cross multiply
    86,509.89x = 119,392.79 × 50,701.41
  4. Step 4: Simplify right side
    86,509.89x = 6,053,382,796.83
  5. Step 5: Solve for x
    x = 6,053,382,796.83/86,509.89
  6. Step 6: Final answer
    x = 69,973.30

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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.