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Finding the Fourth Proportional to 359,283.71, 538,777.29 and 122,645.45

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Solution

The fourth proportional to 359,283.71, 538,777.29 and 122,645.45 is: 183,917.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,283.71 : 538,777.29 = 122,645.45 : x
  2. Step 2: Convert to fraction form
    359,283.71/538,777.29 = 122,645.45/x
  3. Step 3: Cross multiply
    359,283.71x = 538,777.29 × 122,645.45
  4. Step 4: Simplify right side
    359,283.71x = 66,078,583,181.83
  5. Step 5: Solve for x
    x = 66,078,583,181.83/359,283.71
  6. Step 6: Final answer
    x = 183,917.56

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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.