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Finding the Fourth Proportional to 452,991.80, 679,487.70 and 116,031.80

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Solution

The fourth proportional to 452,991.80, 679,487.70 and 116,031.80 is: 174,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,991.80 : 679,487.70 = 116,031.80 : x
  2. Step 2: Convert to fraction form
    452,991.80/679,487.70 = 116,031.80/x
  3. Step 3: Cross multiply
    452,991.80x = 679,487.70 × 116,031.80
  4. Step 4: Simplify right side
    452,991.80x = 78,842,180,908.86
  5. Step 5: Solve for x
    x = 78,842,180,908.86/452,991.80
  6. Step 6: Final answer
    x = 174,047.70

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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.