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Finding the Fourth Proportional to 143,005.59, 214,544.88 and 83,893.41

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Solution

The fourth proportional to 143,005.59, 214,544.88 and 83,893.41 is: 125,861.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,005.59 : 214,544.88 = 83,893.41 : x
  2. Step 2: Convert to fraction form
    143,005.59/214,544.88 = 83,893.41/x
  3. Step 3: Cross multiply
    143,005.59x = 214,544.88 × 83,893.41
  4. Step 4: Simplify right side
    143,005.59x = 17,998,901,581.24
  5. Step 5: Solve for x
    x = 17,998,901,581.24/143,005.59
  6. Step 6: Final answer
    x = 125,861.52

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1.5x scale

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.