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Finding the Fourth Proportional to 413,565.19, 620,345.51 and 161,021.37

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Solution

The fourth proportional to 413,565.19, 620,345.51 and 161,021.37 is: 241,531.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,565.19 : 620,345.51 = 161,021.37 : x
  2. Step 2: Convert to fraction form
    413,565.19/620,345.51 = 161,021.37/x
  3. Step 3: Cross multiply
    413,565.19x = 620,345.51 × 161,021.37
  4. Step 4: Simplify right side
    413,565.19x = 99,888,882,982.00
  5. Step 5: Solve for x
    x = 99,888,882,982.00/413,565.19
  6. Step 6: Final answer
    x = 241,531.17

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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.