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Finding the Fourth Proportional to 332,955.90, 499,278.58 and 172,988.83

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Solution

The fourth proportional to 332,955.90, 499,278.58 and 172,988.83 is: 259,402.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,955.90 : 499,278.58 = 172,988.83 : x
  2. Step 2: Convert to fraction form
    332,955.90/499,278.58 = 172,988.83/x
  3. Step 3: Cross multiply
    332,955.90x = 499,278.58 × 172,988.83
  4. Step 4: Simplify right side
    332,955.90x = 86,369,617,398.26
  5. Step 5: Solve for x
    x = 86,369,617,398.26/332,955.90
  6. Step 6: Final answer
    x = 259,402.58

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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.