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Finding the Fourth Proportional to 359,271.56, 539,261.88 and 190,791.40

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Solution

The fourth proportional to 359,271.56, 539,261.88 and 190,791.40 is: 286,375.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,271.56 : 539,261.88 = 190,791.40 : x
  2. Step 2: Convert to fraction form
    359,271.56/539,261.88 = 190,791.40/x
  3. Step 3: Cross multiply
    359,271.56x = 539,261.88 × 190,791.40
  4. Step 4: Simplify right side
    359,271.56x = 102,886,529,051.83
  5. Step 5: Solve for x
    x = 102,886,529,051.83/359,271.56
  6. Step 6: Final answer
    x = 286,375.38

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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.