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Finding the Fourth Proportional to 350,171.64, 525,421.49 and 172,581.84

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Solution

The fourth proportional to 350,171.64, 525,421.49 and 172,581.84 is: 258,953.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,171.64 : 525,421.49 = 172,581.84 : x
  2. Step 2: Convert to fraction form
    350,171.64/525,421.49 = 172,581.84/x
  3. Step 3: Cross multiply
    350,171.64x = 525,421.49 × 172,581.84
  4. Step 4: Simplify right side
    350,171.64x = 90,678,206,656.83
  5. Step 5: Solve for x
    x = 90,678,206,656.83/350,171.64
  6. Step 6: Final answer
    x = 258,953.60

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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.