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Finding the Fourth Proportional to 169,721.04, 254,609.06 and 57,407.96

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Solution

The fourth proportional to 169,721.04, 254,609.06 and 57,407.96 is: 86,121.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,721.04 : 254,609.06 = 57,407.96 : x
  2. Step 2: Convert to fraction form
    169,721.04/254,609.06 = 57,407.96/x
  3. Step 3: Cross multiply
    169,721.04x = 254,609.06 × 57,407.96
  4. Step 4: Simplify right side
    169,721.04x = 14,616,587,081.60
  5. Step 5: Solve for x
    x = 14,616,587,081.60/169,721.04
  6. Step 6: Final answer
    x = 86,121.24

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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.