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Finding the Fourth Proportional to 124,290.56, 171,584.52 and 84,216.08

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Solution

The fourth proportional to 124,290.56, 171,584.52 and 84,216.08 is: 116,261.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,290.56 : 171,584.52 = 84,216.08 : x
  2. Step 2: Convert to fraction form
    124,290.56/171,584.52 = 84,216.08/x
  3. Step 3: Cross multiply
    124,290.56x = 171,584.52 × 84,216.08
  4. Step 4: Simplify right side
    124,290.56x = 14,450,175,663.08
  5. Step 5: Solve for x
    x = 14,450,175,663.08/124,290.56
  6. Step 6: Final answer
    x = 116,261.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.