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Finding the Fourth Proportional to 347,666.80, 521,451.60 and 111,033.40

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Solution

The fourth proportional to 347,666.80, 521,451.60 and 111,033.40 is: 166,534.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,666.80 : 521,451.60 = 111,033.40 : x
  2. Step 2: Convert to fraction form
    347,666.80/521,451.60 = 111,033.40/x
  3. Step 3: Cross multiply
    347,666.80x = 521,451.60 × 111,033.40
  4. Step 4: Simplify right side
    347,666.80x = 57,898,544,083.44
  5. Step 5: Solve for x
    x = 57,898,544,083.44/347,666.80
  6. Step 6: Final answer
    x = 166,534.58

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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.