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Finding the Fourth Proportional to 123,977.64, 171,083.52 and 70,259.52

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Solution

The fourth proportional to 123,977.64, 171,083.52 and 70,259.52 is: 96,954.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,977.64 : 171,083.52 = 70,259.52 : x
  2. Step 2: Convert to fraction form
    123,977.64/171,083.52 = 70,259.52/x
  3. Step 3: Cross multiply
    123,977.64x = 171,083.52 × 70,259.52
  4. Step 4: Simplify right side
    123,977.64x = 12,020,245,995.11
  5. Step 5: Solve for x
    x = 12,020,245,995.11/123,977.64
  6. Step 6: Final answer
    x = 96,954.95

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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.