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Finding the Fourth Proportional to 359,390.14, 539,149.76 and 122,677.46

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Solution

The fourth proportional to 359,390.14, 539,149.76 and 122,677.46 is: 184,038.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,390.14 : 539,149.76 = 122,677.46 : x
  2. Step 2: Convert to fraction form
    359,390.14/539,149.76 = 122,677.46/x
  3. Step 3: Cross multiply
    359,390.14x = 539,149.76 × 122,677.46
  4. Step 4: Simplify right side
    359,390.14x = 66,141,522,289.13
  5. Step 5: Solve for x
    x = 66,141,522,289.13/359,390.14
  6. Step 6: Final answer
    x = 184,038.22

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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.