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Finding the Fourth Proportional to 185,699.99, 256,269.02 and 105,125.45

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Solution

The fourth proportional to 185,699.99, 256,269.02 and 105,125.45 is: 145,074.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,699.99 : 256,269.02 = 105,125.45 : x
  2. Step 2: Convert to fraction form
    185,699.99/256,269.02 = 105,125.45/x
  3. Step 3: Cross multiply
    185,699.99x = 256,269.02 × 105,125.45
  4. Step 4: Simplify right side
    185,699.99x = 26,940,394,241.59
  5. Step 5: Solve for x
    x = 26,940,394,241.59/185,699.99
  6. Step 6: Final answer
    x = 145,074.83

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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.