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Finding the Fourth Proportional to 294,315.10, 441,472.65 and 72,699.10

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Solution

The fourth proportional to 294,315.10, 441,472.65 and 72,699.10 is: 109,048.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,315.10 : 441,472.65 = 72,699.10 : x
  2. Step 2: Convert to fraction form
    294,315.10/441,472.65 = 72,699.10/x
  3. Step 3: Cross multiply
    294,315.10x = 441,472.65 × 72,699.10
  4. Step 4: Simplify right side
    294,315.10x = 32,094,664,329.62
  5. Step 5: Solve for x
    x = 32,094,664,329.62/294,315.10
  6. Step 6: Final answer
    x = 109,048.65

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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.