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Finding the Fourth Proportional to 360,681, 540,669.90 and 150,379.08

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Solution

The fourth proportional to 360,681, 540,669.90 and 150,379.08 is: 225,422.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,681 : 540,669.90 = 150,379.08 : x
  2. Step 2: Convert to fraction form
    360,681/540,669.90 = 150,379.08/x
  3. Step 3: Cross multiply
    360,681x = 540,669.90 × 150,379.08
  4. Step 4: Simplify right side
    360,681x = 81,305,442,145.69
  5. Step 5: Solve for x
    x = 81,305,442,145.69/360,681
  6. Step 6: Final answer
    x = 225,422.03

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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.