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Finding the Fourth Proportional to 68,782.59, 94,879.66 and 43,248.49

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Solution

The fourth proportional to 68,782.59, 94,879.66 and 43,248.49 is: 59,657.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,782.59 : 94,879.66 = 43,248.49 : x
  2. Step 2: Convert to fraction form
    68,782.59/94,879.66 = 43,248.49/x
  3. Step 3: Cross multiply
    68,782.59x = 94,879.66 × 43,248.49
  4. Step 4: Simplify right side
    68,782.59x = 4,103,402,026.71
  5. Step 5: Solve for x
    x = 4,103,402,026.71/68,782.59
  6. Step 6: Final answer
    x = 59,657.57

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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.