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Finding the Fourth Proportional to 169,804.48, 254,356.72 and 99,470.56

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Solution

The fourth proportional to 169,804.48, 254,356.72 and 99,470.56 is: 149,000.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,804.48 : 254,356.72 = 99,470.56 : x
  2. Step 2: Convert to fraction form
    169,804.48/254,356.72 = 99,470.56/x
  3. Step 3: Cross multiply
    169,804.48x = 254,356.72 × 99,470.56
  4. Step 4: Simplify right side
    169,804.48x = 25,301,005,378.16
  5. Step 5: Solve for x
    x = 25,301,005,378.16/169,804.48
  6. Step 6: Final answer
    x = 149,000.81

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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.