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Finding the Fourth Proportional to 231,969.30, 348,063.30 and 172,920.30

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Solution

The fourth proportional to 231,969.30, 348,063.30 and 172,920.30 is: 259,461.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,969.30 : 348,063.30 = 172,920.30 : x
  2. Step 2: Convert to fraction form
    231,969.30/348,063.30 = 172,920.30/x
  3. Step 3: Cross multiply
    231,969.30x = 348,063.30 × 172,920.30
  4. Step 4: Simplify right side
    231,969.30x = 60,187,210,254.99
  5. Step 5: Solve for x
    x = 60,187,210,254.99/231,969.30
  6. Step 6: Final answer
    x = 259,461.96

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1.5x scale

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.