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Finding the Fourth Proportional to 359,302.80, 538,954.20 and 122,653.20

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Solution

The fourth proportional to 359,302.80, 538,954.20 and 122,653.20 is: 183,979.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,302.80 : 538,954.20 = 122,653.20 : x
  2. Step 2: Convert to fraction form
    359,302.80/538,954.20 = 122,653.20/x
  3. Step 3: Cross multiply
    359,302.80x = 538,954.20 × 122,653.20
  4. Step 4: Simplify right side
    359,302.80x = 66,104,457,283.44
  5. Step 5: Solve for x
    x = 66,104,457,283.44/359,302.80
  6. Step 6: Final answer
    x = 183,979.80

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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.