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Finding the Fourth Proportional to 359,272.20, 538,908.30 and 122,536.20

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Solution

The fourth proportional to 359,272.20, 538,908.30 and 122,536.20 is: 183,804.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,272.20 : 538,908.30 = 122,536.20 : x
  2. Step 2: Convert to fraction form
    359,272.20/538,908.30 = 122,536.20/x
  3. Step 3: Cross multiply
    359,272.20x = 538,908.30 × 122,536.20
  4. Step 4: Simplify right side
    359,272.20x = 66,035,775,230.46
  5. Step 5: Solve for x
    x = 66,035,775,230.46/359,272.20
  6. Step 6: Final answer
    x = 183,804.30

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1.5x scale

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.