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Finding the Fourth Proportional to 453,053.40, 679,148.10 and 168,667.80

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Solution

The fourth proportional to 453,053.40, 679,148.10 and 168,667.80 is: 252,840.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,053.40 : 679,148.10 = 168,667.80 : x
  2. Step 2: Convert to fraction form
    453,053.40/679,148.10 = 168,667.80/x
  3. Step 3: Cross multiply
    453,053.40x = 679,148.10 × 168,667.80
  4. Step 4: Simplify right side
    453,053.40x = 114,550,415,901.18
  5. Step 5: Solve for x
    x = 114,550,415,901.18/453,053.40
  6. Step 6: Final answer
    x = 252,840.87

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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.