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Finding the Fourth Proportional to 86,468.50, 119,326.53 and 46,724.50

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Solution

The fourth proportional to 86,468.50, 119,326.53 and 46,724.50 is: 64,479.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,468.50 : 119,326.53 = 46,724.50 : x
  2. Step 2: Convert to fraction form
    86,468.50/119,326.53 = 46,724.50/x
  3. Step 3: Cross multiply
    86,468.50x = 119,326.53 × 46,724.50
  4. Step 4: Simplify right side
    86,468.50x = 5,575,472,450.99
  5. Step 5: Solve for x
    x = 5,575,472,450.99/86,468.50
  6. Step 6: Final answer
    x = 64,479.81

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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.