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Finding the Fourth Proportional to 217,129.51, 325,694.40 and 59,346.10

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Solution

The fourth proportional to 217,129.51, 325,694.40 and 59,346.10 is: 89,019.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,129.51 : 325,694.40 = 59,346.10 : x
  2. Step 2: Convert to fraction form
    217,129.51/325,694.40 = 59,346.10/x
  3. Step 3: Cross multiply
    217,129.51x = 325,694.40 × 59,346.10
  4. Step 4: Simplify right side
    217,129.51x = 19,328,690,506.64
  5. Step 5: Solve for x
    x = 19,328,690,506.64/217,129.51
  6. Step 6: Final answer
    x = 89,019.18

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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.