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Finding the Fourth Proportional to 142,999.85, 214,501.01 and 36,383.90

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Solution

The fourth proportional to 142,999.85, 214,501.01 and 36,383.90 is: 54,576.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,999.85 : 214,501.01 = 36,383.90 : x
  2. Step 2: Convert to fraction form
    142,999.85/214,501.01 = 36,383.90/x
  3. Step 3: Cross multiply
    142,999.85x = 214,501.01 × 36,383.90
  4. Step 4: Simplify right side
    142,999.85x = 7,804,382,043.31
  5. Step 5: Solve for x
    x = 7,804,382,043.31/142,999.85
  6. Step 6: Final answer
    x = 54,576.16

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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.