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Finding the Fourth Proportional to 176,079.80, 264,119.70 and 51,420.80

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Solution

The fourth proportional to 176,079.80, 264,119.70 and 51,420.80 is: 77,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,079.80 : 264,119.70 = 51,420.80 : x
  2. Step 2: Convert to fraction form
    176,079.80/264,119.70 = 51,420.80/x
  3. Step 3: Cross multiply
    176,079.80x = 264,119.70 × 51,420.80
  4. Step 4: Simplify right side
    176,079.80x = 13,581,246,269.76
  5. Step 5: Solve for x
    x = 13,581,246,269.76/176,079.80
  6. Step 6: Final answer
    x = 77,131.20

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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.