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Finding the Fourth Proportional to 359,101.49, 538,668.63 and 134,403.64

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Solution

The fourth proportional to 359,101.49, 538,668.63 and 134,403.64 is: 201,611.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,101.49 : 538,668.63 = 134,403.64 : x
  2. Step 2: Convert to fraction form
    359,101.49/538,668.63 = 134,403.64/x
  3. Step 3: Cross multiply
    359,101.49x = 538,668.63 × 134,403.64
  4. Step 4: Simplify right side
    359,101.49x = 72,399,023,279.14
  5. Step 5: Solve for x
    x = 72,399,023,279.14/359,101.49
  6. Step 6: Final answer
    x = 201,611.60

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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.