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Finding the Fourth Proportional to 359,491.25, 539,237.05 and 122,836.25

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Solution

The fourth proportional to 359,491.25, 539,237.05 and 122,836.25 is: 184,254.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,491.25 : 539,237.05 = 122,836.25 : x
  2. Step 2: Convert to fraction form
    359,491.25/539,237.05 = 122,836.25/x
  3. Step 3: Cross multiply
    359,491.25x = 539,237.05 × 122,836.25
  4. Step 4: Simplify right side
    359,491.25x = 66,237,854,386.88
  5. Step 5: Solve for x
    x = 66,237,854,386.88/359,491.25
  6. Step 6: Final answer
    x = 184,254.43

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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.