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Finding the Fourth Proportional to 503,146.63, 754,566.33 and 143,346.86

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Solution

The fourth proportional to 503,146.63, 754,566.33 and 143,346.86 is: 214,976.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,146.63 : 754,566.33 = 143,346.86 : x
  2. Step 2: Convert to fraction form
    503,146.63/754,566.33 = 143,346.86/x
  3. Step 3: Cross multiply
    503,146.63x = 754,566.33 × 143,346.86
  4. Step 4: Simplify right side
    503,146.63x = 108,164,713,350.49
  5. Step 5: Solve for x
    x = 108,164,713,350.49/503,146.63
  6. Step 6: Final answer
    x = 214,976.52

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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.