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Finding the Fourth Proportional to 106,479.75, 146,921.61 and 64,041.02

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Solution

The fourth proportional to 106,479.75, 146,921.61 and 64,041.02 is: 88,364.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,479.75 : 146,921.61 = 64,041.02 : x
  2. Step 2: Convert to fraction form
    106,479.75/146,921.61 = 64,041.02/x
  3. Step 3: Cross multiply
    106,479.75x = 146,921.61 × 64,041.02
  4. Step 4: Simplify right side
    106,479.75x = 9,409,009,764.44
  5. Step 5: Solve for x
    x = 9,409,009,764.44/106,479.75
  6. Step 6: Final answer
    x = 88,364.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.