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Finding the Fourth Proportional to 353,556.13, 530,400.21 and 117,065.29

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Solution

The fourth proportional to 353,556.13, 530,400.21 and 117,065.29 is: 175,619.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,556.13 : 530,400.21 = 117,065.29 : x
  2. Step 2: Convert to fraction form
    353,556.13/530,400.21 = 117,065.29/x
  3. Step 3: Cross multiply
    353,556.13x = 530,400.21 × 117,065.29
  4. Step 4: Simplify right side
    353,556.13x = 62,091,454,399.71
  5. Step 5: Solve for x
    x = 62,091,454,399.71/353,556.13
  6. Step 6: Final answer
    x = 175,619.79

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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.