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Finding the Fourth Proportional to 525,861.75, 788,398.97 and 170,663.79

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Solution

The fourth proportional to 525,861.75, 788,398.97 and 170,663.79 is: 255,867.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,861.75 : 788,398.97 = 170,663.79 : x
  2. Step 2: Convert to fraction form
    525,861.75/788,398.97 = 170,663.79/x
  3. Step 3: Cross multiply
    525,861.75x = 788,398.97 × 170,663.79
  4. Step 4: Simplify right side
    525,861.75x = 134,551,155,398.98
  5. Step 5: Solve for x
    x = 134,551,155,398.98/525,861.75
  6. Step 6: Final answer
    x = 255,867.93

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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.