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Finding the Fourth Proportional to 247,045.29, 370,604.81 and 78,571.11

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Solution

The fourth proportional to 247,045.29, 370,604.81 and 78,571.11 is: 117,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,045.29 : 370,604.81 = 78,571.11 : x
  2. Step 2: Convert to fraction form
    247,045.29/370,604.81 = 78,571.11/x
  3. Step 3: Cross multiply
    247,045.29x = 370,604.81 × 78,571.11
  4. Step 4: Simplify right side
    247,045.29x = 29,118,832,326.78
  5. Step 5: Solve for x
    x = 29,118,832,326.78/247,045.29
  6. Step 6: Final answer
    x = 117,868.40

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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.