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Finding the Fourth Proportional to 359,199.54, 538,779.78 and 109,881.54

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Solution

The fourth proportional to 359,199.54, 538,779.78 and 109,881.54 is: 164,816.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,199.54 : 538,779.78 = 109,881.54 : x
  2. Step 2: Convert to fraction form
    359,199.54/538,779.78 = 109,881.54/x
  3. Step 3: Cross multiply
    359,199.54x = 538,779.78 × 109,881.54
  4. Step 4: Simplify right side
    359,199.54x = 59,201,951,947.26
  5. Step 5: Solve for x
    x = 59,201,951,947.26/359,199.54
  6. Step 6: Final answer
    x = 164,816.34

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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.