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Finding the Fourth Proportional to 359,618.98, 539,428.74 and 122,963.44

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Solution

The fourth proportional to 359,618.98, 539,428.74 and 122,963.44 is: 184,445.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,618.98 : 539,428.74 = 122,963.44 : x
  2. Step 2: Convert to fraction form
    359,618.98/539,428.74 = 122,963.44/x
  3. Step 3: Cross multiply
    359,618.98x = 539,428.74 × 122,963.44
  4. Step 4: Simplify right side
    359,618.98x = 66,330,013,505.27
  5. Step 5: Solve for x
    x = 66,330,013,505.27/359,618.98
  6. Step 6: Final answer
    x = 184,445.25

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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.