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Finding the Fourth Proportional to 250,965.81, 376,368.93 and 82,447.07

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Solution

The fourth proportional to 250,965.81, 376,368.93 and 82,447.07 is: 123,644.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,965.81 : 376,368.93 = 82,447.07 : x
  2. Step 2: Convert to fraction form
    250,965.81/376,368.93 = 82,447.07/x
  3. Step 3: Cross multiply
    250,965.81x = 376,368.93 × 82,447.07
  4. Step 4: Simplify right side
    250,965.81x = 31,030,513,635.69
  5. Step 5: Solve for x
    x = 31,030,513,635.69/250,965.81
  6. Step 6: Final answer
    x = 123,644.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.