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Finding the Fourth Proportional to 124,255, 171,488.10 and 73,954

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Solution

The fourth proportional to 124,255, 171,488.10 and 73,954 is: 102,066.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,255 : 171,488.10 = 73,954 : x
  2. Step 2: Convert to fraction form
    124,255/171,488.10 = 73,954/x
  3. Step 3: Cross multiply
    124,255x = 171,488.10 × 73,954
  4. Step 4: Simplify right side
    124,255x = 12,682,230,947.40
  5. Step 5: Solve for x
    x = 12,682,230,947.40/124,255
  6. Step 6: Final answer
    x = 102,066.16

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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.