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Finding the Fourth Proportional to 78,502.50, 108,343.26 and 44,968.50

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Solution

The fourth proportional to 78,502.50, 108,343.26 and 44,968.50 is: 62,062.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,502.50 : 108,343.26 = 44,968.50 : x
  2. Step 2: Convert to fraction form
    78,502.50/108,343.26 = 44,968.50/x
  3. Step 3: Cross multiply
    78,502.50x = 108,343.26 × 44,968.50
  4. Step 4: Simplify right side
    78,502.50x = 4,872,033,887.31
  5. Step 5: Solve for x
    x = 4,872,033,887.31/78,502.50
  6. Step 6: Final answer
    x = 62,062.15

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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.