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Finding the Fourth Proportional to 359,285.01, 538,976.72 and 122,564.13

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Solution

The fourth proportional to 359,285.01, 538,976.72 and 122,564.13 is: 183,862.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,285.01 : 538,976.72 = 122,564.13 : x
  2. Step 2: Convert to fraction form
    359,285.01/538,976.72 = 122,564.13/x
  3. Step 3: Cross multiply
    359,285.01x = 538,976.72 × 122,564.13
  4. Step 4: Simplify right side
    359,285.01x = 66,059,212,777.05
  5. Step 5: Solve for x
    x = 66,059,212,777.05/359,285.01
  6. Step 6: Final answer
    x = 183,862.98

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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.