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Finding the Fourth Proportional to 359,783.31, 539,576.45 and 135,126.37

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Solution

The fourth proportional to 359,783.31, 539,576.45 and 135,126.37 is: 202,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,783.31 : 539,576.45 = 135,126.37 : x
  2. Step 2: Convert to fraction form
    359,783.31/539,576.45 = 135,126.37/x
  3. Step 3: Cross multiply
    359,783.31x = 539,576.45 × 135,126.37
  4. Step 4: Simplify right side
    359,783.31x = 72,911,003,652.47
  5. Step 5: Solve for x
    x = 72,911,003,652.47/359,783.31
  6. Step 6: Final answer
    x = 202,652.55

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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.