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Finding the Fourth Proportional to 592,846.80, 889,385.40 and 172,136.40

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Solution

The fourth proportional to 592,846.80, 889,385.40 and 172,136.40 is: 258,238.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,846.80 : 889,385.40 = 172,136.40 : x
  2. Step 2: Convert to fraction form
    592,846.80/889,385.40 = 172,136.40/x
  3. Step 3: Cross multiply
    592,846.80x = 889,385.40 × 172,136.40
  4. Step 4: Simplify right side
    592,846.80x = 153,095,600,968.56
  5. Step 5: Solve for x
    x = 153,095,600,968.56/592,846.80
  6. Step 6: Final answer
    x = 258,238.05

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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.