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Finding the Fourth Proportional to 169,681.20, 254,550.60 and 51,351.60

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Solution

The fourth proportional to 169,681.20, 254,550.60 and 51,351.60 is: 77,036.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,681.20 : 254,550.60 = 51,351.60 : x
  2. Step 2: Convert to fraction form
    169,681.20/254,550.60 = 51,351.60/x
  3. Step 3: Cross multiply
    169,681.20x = 254,550.60 × 51,351.60
  4. Step 4: Simplify right side
    169,681.20x = 13,071,580,590.96
  5. Step 5: Solve for x
    x = 13,071,580,590.96/169,681.20
  6. Step 6: Final answer
    x = 77,036.12

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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.