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Finding the Fourth Proportional to 122,952.64, 169,673 and 69,242.96

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Solution

The fourth proportional to 122,952.64, 169,673 and 69,242.96 is: 95,554.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,952.64 : 169,673 = 69,242.96 : x
  2. Step 2: Convert to fraction form
    122,952.64/169,673 = 69,242.96/x
  3. Step 3: Cross multiply
    122,952.64x = 169,673 × 69,242.96
  4. Step 4: Simplify right side
    122,952.64x = 11,748,660,752.08
  5. Step 5: Solve for x
    x = 11,748,660,752.08/122,952.64
  6. Step 6: Final answer
    x = 95,554.36

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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.