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Finding the Fourth Proportional to 169,707.60, 254,574.16 and 51,388.47

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Solution

The fourth proportional to 169,707.60, 254,574.16 and 51,388.47 is: 77,086.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,707.60 : 254,574.16 = 51,388.47 : x
  2. Step 2: Convert to fraction form
    169,707.60/254,574.16 = 51,388.47/x
  3. Step 3: Cross multiply
    169,707.60x = 254,574.16 × 51,388.47
  4. Step 4: Simplify right side
    169,707.60x = 13,082,176,583.94
  5. Step 5: Solve for x
    x = 13,082,176,583.94/169,707.60
  6. Step 6: Final answer
    x = 77,086.57

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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.