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Finding the Fourth Proportional to 359,375.34, 538,905.14 and 134,578.11

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Solution

The fourth proportional to 359,375.34, 538,905.14 and 134,578.11 is: 201,808.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,375.34 : 538,905.14 = 134,578.11 : x
  2. Step 2: Convert to fraction form
    359,375.34/538,905.14 = 134,578.11/x
  3. Step 3: Cross multiply
    359,375.34x = 538,905.14 × 134,578.11
  4. Step 4: Simplify right side
    359,375.34x = 72,524,837,063.16
  5. Step 5: Solve for x
    x = 72,524,837,063.16/359,375.34
  6. Step 6: Final answer
    x = 201,808.05

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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.