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Finding the Fourth Proportional to 359,263.86, 539,093.25 and 134,779.38

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Solution

The fourth proportional to 359,263.86, 539,093.25 and 134,779.38 is: 202,243.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,263.86 : 539,093.25 = 134,779.38 : x
  2. Step 2: Convert to fraction form
    359,263.86/539,093.25 = 134,779.38/x
  3. Step 3: Cross multiply
    359,263.86x = 539,093.25 × 134,779.38
  4. Step 4: Simplify right side
    359,263.86x = 72,658,653,997.19
  5. Step 5: Solve for x
    x = 72,658,653,997.19/359,263.86
  6. Step 6: Final answer
    x = 202,243.15

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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.