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Finding the Fourth Proportional to 217,210.95, 325,804.56 and 59,428.01

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Solution

The fourth proportional to 217,210.95, 325,804.56 and 59,428.01 is: 89,138.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,210.95 : 325,804.56 = 59,428.01 : x
  2. Step 2: Convert to fraction form
    217,210.95/325,804.56 = 59,428.01/x
  3. Step 3: Cross multiply
    217,210.95x = 325,804.56 × 59,428.01
  4. Step 4: Simplify right side
    217,210.95x = 19,361,915,020.70
  5. Step 5: Solve for x
    x = 19,361,915,020.70/217,210.95
  6. Step 6: Final answer
    x = 89,138.76

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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.