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Finding the Fourth Proportional to 592,843.80, 889,380.90 and 172,133.40

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Solution

The fourth proportional to 592,843.80, 889,380.90 and 172,133.40 is: 258,233.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,843.80 : 889,380.90 = 172,133.40 : x
  2. Step 2: Convert to fraction form
    592,843.80/889,380.90 = 172,133.40/x
  3. Step 3: Cross multiply
    592,843.80x = 889,380.90 × 172,133.40
  4. Step 4: Simplify right side
    592,843.80x = 153,092,158,212.06
  5. Step 5: Solve for x
    x = 153,092,158,212.06/592,843.80
  6. Step 6: Final answer
    x = 258,233.55

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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.