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Finding the Fourth Proportional to 350,022.55, 525,142.78 and 125,384.91

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Solution

The fourth proportional to 350,022.55, 525,142.78 and 125,384.91 is: 188,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,022.55 : 525,142.78 = 125,384.91 : x
  2. Step 2: Convert to fraction form
    350,022.55/525,142.78 = 125,384.91/x
  3. Step 3: Cross multiply
    350,022.55x = 525,142.78 × 125,384.91
  4. Step 4: Simplify right side
    350,022.55x = 65,844,979,893.99
  5. Step 5: Solve for x
    x = 65,844,979,893.99/350,022.55
  6. Step 6: Final answer
    x = 188,116.40

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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.