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Finding the Fourth Proportional to 70,684.88, 97,545.33 and 40,470.66

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Solution

The fourth proportional to 70,684.88, 97,545.33 and 40,470.66 is: 55,849.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,684.88 : 97,545.33 = 40,470.66 : x
  2. Step 2: Convert to fraction form
    70,684.88/97,545.33 = 40,470.66/x
  3. Step 3: Cross multiply
    70,684.88x = 97,545.33 × 40,470.66
  4. Step 4: Simplify right side
    70,684.88x = 3,947,723,885.02
  5. Step 5: Solve for x
    x = 3,947,723,885.02/70,684.88
  6. Step 6: Final answer
    x = 55,849.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.