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Finding the Fourth Proportional to 76,663.86, 114,842.69 and 60,895.59

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Solution

The fourth proportional to 76,663.86, 114,842.69 and 60,895.59 is: 91,221.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,663.86 : 114,842.69 = 60,895.59 : x
  2. Step 2: Convert to fraction form
    76,663.86/114,842.69 = 60,895.59/x
  3. Step 3: Cross multiply
    76,663.86x = 114,842.69 × 60,895.59
  4. Step 4: Simplify right side
    76,663.86x = 6,993,413,364.74
  5. Step 5: Solve for x
    x = 6,993,413,364.74/76,663.86
  6. Step 6: Final answer
    x = 91,221.77

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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.