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Finding the Fourth Proportional to 316,332.88, 436,539.35 and 173,092.91

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Solution

The fourth proportional to 316,332.88, 436,539.35 and 173,092.91 is: 238,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,332.88 : 436,539.35 = 173,092.91 : x
  2. Step 2: Convert to fraction form
    316,332.88/436,539.35 = 173,092.91/x
  3. Step 3: Cross multiply
    316,332.88x = 436,539.35 × 173,092.91
  4. Step 4: Simplify right side
    316,332.88x = 75,561,866,421.01
  5. Step 5: Solve for x
    x = 75,561,866,421.01/316,332.88
  6. Step 6: Final answer
    x = 238,868.20

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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.