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Finding the Fourth Proportional to 351,476.82, 527,106.18 and 126,808.04

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Solution

The fourth proportional to 351,476.82, 527,106.18 and 126,808.04 is: 190,172.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,476.82 : 527,106.18 = 126,808.04 : x
  2. Step 2: Convert to fraction form
    351,476.82/527,106.18 = 126,808.04/x
  3. Step 3: Cross multiply
    351,476.82x = 527,106.18 × 126,808.04
  4. Step 4: Simplify right side
    351,476.82x = 66,841,301,557.69
  5. Step 5: Solve for x
    x = 66,841,301,557.69/351,476.82
  6. Step 6: Final answer
    x = 190,172.72

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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.