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Finding the Fourth Proportional to 86,923.94, 119,950.88 and 53,383.46

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Solution

The fourth proportional to 86,923.94, 119,950.88 and 53,383.46 is: 73,666.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,923.94 : 119,950.88 = 53,383.46 : x
  2. Step 2: Convert to fraction form
    86,923.94/119,950.88 = 53,383.46/x
  3. Step 3: Cross multiply
    86,923.94x = 119,950.88 × 53,383.46
  4. Step 4: Simplify right side
    86,923.94x = 6,403,393,004.44
  5. Step 5: Solve for x
    x = 6,403,393,004.44/86,923.94
  6. Step 6: Final answer
    x = 73,666.62

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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.