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Finding the Fourth Proportional to 501,618.61, 752,471.66 and 146,668.51

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Solution

The fourth proportional to 501,618.61, 752,471.66 and 146,668.51 is: 220,015.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,618.61 : 752,471.66 = 146,668.51 : x
  2. Step 2: Convert to fraction form
    501,618.61/752,471.66 = 146,668.51/x
  3. Step 3: Cross multiply
    501,618.61x = 752,471.66 × 146,668.51
  4. Step 4: Simplify right side
    501,618.61x = 110,363,897,189.43
  5. Step 5: Solve for x
    x = 110,363,897,189.43/501,618.61
  6. Step 6: Final answer
    x = 220,015.56

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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.