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Finding the Fourth Proportional to 169,461.54, 254,264.09 and 85,177.31

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Solution

The fourth proportional to 169,461.54, 254,264.09 and 85,177.31 is: 127,802.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,461.54 : 254,264.09 = 85,177.31 : x
  2. Step 2: Convert to fraction form
    169,461.54/254,264.09 = 85,177.31/x
  3. Step 3: Cross multiply
    169,461.54x = 254,264.09 × 85,177.31
  4. Step 4: Simplify right side
    169,461.54x = 21,657,529,518.59
  5. Step 5: Solve for x
    x = 21,657,529,518.59/169,461.54
  6. Step 6: Final answer
    x = 127,802.03

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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.