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Finding the Fourth Proportional to 332,965.07, 499,292.32 and 172,998

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Solution

The fourth proportional to 332,965.07, 499,292.32 and 172,998 is: 259,416.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,965.07 : 499,292.32 = 172,998 : x
  2. Step 2: Convert to fraction form
    332,965.07/499,292.32 = 172,998/x
  3. Step 3: Cross multiply
    332,965.07x = 499,292.32 × 172,998
  4. Step 4: Simplify right side
    332,965.07x = 86,376,572,775.36
  5. Step 5: Solve for x
    x = 86,376,572,775.36/332,965.07
  6. Step 6: Final answer
    x = 259,416.32

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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.