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Finding the Fourth Proportional to 217,041.18, 325,655.18 and 104,805.41

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Solution

The fourth proportional to 217,041.18, 325,655.18 and 104,805.41 is: 157,253.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,041.18 : 325,655.18 = 104,805.41 : x
  2. Step 2: Convert to fraction form
    217,041.18/325,655.18 = 104,805.41/x
  3. Step 3: Cross multiply
    217,041.18x = 325,655.18 × 104,805.41
  4. Step 4: Simplify right side
    217,041.18x = 34,130,422,506.22
  5. Step 5: Solve for x
    x = 34,130,422,506.22/217,041.18
  6. Step 6: Final answer
    x = 157,253.21

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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.