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Finding the Fourth Proportional to 359,623.37, 539,374.91 and 131,871.93

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Solution

The fourth proportional to 359,623.37, 539,374.91 and 131,871.93 is: 197,785.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,623.37 : 539,374.91 = 131,871.93 : x
  2. Step 2: Convert to fraction form
    359,623.37/539,374.91 = 131,871.93/x
  3. Step 3: Cross multiply
    359,623.37x = 539,374.91 × 131,871.93
  4. Step 4: Simplify right side
    359,623.37x = 71,128,409,715.92
  5. Step 5: Solve for x
    x = 71,128,409,715.92/359,623.37
  6. Step 6: Final answer
    x = 197,785.84

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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.