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Finding the Fourth Proportional to 359,032.23, 538,640.62 and 134,395.90

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Solution

The fourth proportional to 359,032.23, 538,640.62 and 134,395.90 is: 201,628.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,032.23 : 538,640.62 = 134,395.90 : x
  2. Step 2: Convert to fraction form
    359,032.23/538,640.62 = 134,395.90/x
  3. Step 3: Cross multiply
    359,032.23x = 538,640.62 × 134,395.90
  4. Step 4: Simplify right side
    359,032.23x = 72,391,089,218.87
  5. Step 5: Solve for x
    x = 72,391,089,218.87/359,032.23
  6. Step 6: Final answer
    x = 201,628.39

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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.