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Finding the Fourth Proportional to 150,590.75, 207,811.50 and 86,055.89

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Solution

The fourth proportional to 150,590.75, 207,811.50 and 86,055.89 is: 118,754.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,590.75 : 207,811.50 = 86,055.89 : x
  2. Step 2: Convert to fraction form
    150,590.75/207,811.50 = 86,055.89/x
  3. Step 3: Cross multiply
    150,590.75x = 207,811.50 × 86,055.89
  4. Step 4: Simplify right side
    150,590.75x = 17,883,403,584.74
  5. Step 5: Solve for x
    x = 17,883,403,584.74/150,590.75
  6. Step 6: Final answer
    x = 118,754.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.