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Finding the Fourth Proportional to 79,362.78, 119,045.25 and 29,423.58

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Solution

The fourth proportional to 79,362.78, 119,045.25 and 29,423.58 is: 44,135.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,362.78 : 119,045.25 = 29,423.58 : x
  2. Step 2: Convert to fraction form
    79,362.78/119,045.25 = 29,423.58/x
  3. Step 3: Cross multiply
    79,362.78x = 119,045.25 × 29,423.58
  4. Step 4: Simplify right side
    79,362.78x = 3,502,736,841.77
  5. Step 5: Solve for x
    x = 3,502,736,841.77/79,362.78
  6. Step 6: Final answer
    x = 44,135.77

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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.