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Finding the Fourth Proportional to 353,816.28, 530,726.22 and 101,126.64

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Solution

The fourth proportional to 353,816.28, 530,726.22 and 101,126.64 is: 151,690.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,816.28 : 530,726.22 = 101,126.64 : x
  2. Step 2: Convert to fraction form
    353,816.28/530,726.22 = 101,126.64/x
  3. Step 3: Cross multiply
    353,816.28x = 530,726.22 × 101,126.64
  4. Step 4: Simplify right side
    353,816.28x = 53,670,559,388.50
  5. Step 5: Solve for x
    x = 53,670,559,388.50/353,816.28
  6. Step 6: Final answer
    x = 151,690.47

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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.