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Finding the Fourth Proportional to 86,645.75, 119,571.95 and 50,836.36

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Solution

The fourth proportional to 86,645.75, 119,571.95 and 50,836.36 is: 70,154.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,645.75 : 119,571.95 = 50,836.36 : x
  2. Step 2: Convert to fraction form
    86,645.75/119,571.95 = 50,836.36/x
  3. Step 3: Cross multiply
    86,645.75x = 119,571.95 × 50,836.36
  4. Step 4: Simplify right side
    86,645.75x = 6,078,602,462.51
  5. Step 5: Solve for x
    x = 6,078,602,462.51/86,645.75
  6. Step 6: Final answer
    x = 70,154.65

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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.