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Finding the Fourth Proportional to 359,091.02, 538,650.15 and 134,427.80

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Solution

The fourth proportional to 359,091.02, 538,650.15 and 134,427.80 is: 201,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,091.02 : 538,650.15 = 134,427.80 : x
  2. Step 2: Convert to fraction form
    359,091.02/538,650.15 = 134,427.80/x
  3. Step 3: Cross multiply
    359,091.02x = 538,650.15 × 134,427.80
  4. Step 4: Simplify right side
    359,091.02x = 72,409,554,634.17
  5. Step 5: Solve for x
    x = 72,409,554,634.17/359,091.02
  6. Step 6: Final answer
    x = 201,646.80

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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.