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Finding the Fourth Proportional to 350,172.64, 525,422.99 and 172,582.84

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Solution

The fourth proportional to 350,172.64, 525,422.99 and 172,582.84 is: 258,955.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,172.64 : 525,422.99 = 172,582.84 : x
  2. Step 2: Convert to fraction form
    350,172.64/525,422.99 = 172,582.84/x
  3. Step 3: Cross multiply
    350,172.64x = 525,422.99 × 172,582.84
  4. Step 4: Simplify right side
    350,172.64x = 90,678,991,815.49
  5. Step 5: Solve for x
    x = 90,678,991,815.49/350,172.64
  6. Step 6: Final answer
    x = 258,955.10

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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.