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Finding the Fourth Proportional to 503,620.13, 755,430.30 and 166,570.35

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Solution

The fourth proportional to 503,620.13, 755,430.30 and 166,570.35 is: 249,855.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,620.13 : 755,430.30 = 166,570.35 : x
  2. Step 2: Convert to fraction form
    503,620.13/755,430.30 = 166,570.35/x
  3. Step 3: Cross multiply
    503,620.13x = 755,430.30 × 166,570.35
  4. Step 4: Simplify right side
    503,620.13x = 125,832,289,471.61
  5. Step 5: Solve for x
    x = 125,832,289,471.61/503,620.13
  6. Step 6: Final answer
    x = 249,855.56

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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.