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Finding the Fourth Proportional to 97,423.70, 146,135.55 and 79,913.30

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Solution

The fourth proportional to 97,423.70, 146,135.55 and 79,913.30 is: 119,869.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,423.70 : 146,135.55 = 79,913.30 : x
  2. Step 2: Convert to fraction form
    97,423.70/146,135.55 = 79,913.30/x
  3. Step 3: Cross multiply
    97,423.70x = 146,135.55 × 79,913.30
  4. Step 4: Simplify right side
    97,423.70x = 11,678,174,047.82
  5. Step 5: Solve for x
    x = 11,678,174,047.82/97,423.70
  6. Step 6: Final answer
    x = 119,869.95

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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.