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Finding the Fourth Proportional to 61,981.50, 93,309.48 and 56,470.26

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Solution

The fourth proportional to 61,981.50, 93,309.48 and 56,470.26 is: 85,012.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,981.50 : 93,309.48 = 56,470.26 : x
  2. Step 2: Convert to fraction form
    61,981.50/93,309.48 = 56,470.26/x
  3. Step 3: Cross multiply
    61,981.50x = 93,309.48 × 56,470.26
  4. Step 4: Simplify right side
    61,981.50x = 5,269,210,596.06
  5. Step 5: Solve for x
    x = 5,269,210,596.06/61,981.50
  6. Step 6: Final answer
    x = 85,012.63

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.