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Finding the Fourth Proportional to 146,118.28, 201,643.06 and 79,050.28

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Solution

The fourth proportional to 146,118.28, 201,643.06 and 79,050.28 is: 109,089.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,118.28 : 201,643.06 = 79,050.28 : x
  2. Step 2: Convert to fraction form
    146,118.28/201,643.06 = 79,050.28/x
  3. Step 3: Cross multiply
    146,118.28x = 201,643.06 × 79,050.28
  4. Step 4: Simplify right side
    146,118.28x = 15,939,940,353.06
  5. Step 5: Solve for x
    x = 15,939,940,353.06/146,118.28
  6. Step 6: Final answer
    x = 109,089.30

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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.