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Finding the Fourth Proportional to 78,872.50, 108,853.59 and 44,889.24

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Solution

The fourth proportional to 78,872.50, 108,853.59 and 44,889.24 is: 61,952.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,872.50 : 108,853.59 = 44,889.24 : x
  2. Step 2: Convert to fraction form
    78,872.50/108,853.59 = 44,889.24/x
  3. Step 3: Cross multiply
    78,872.50x = 108,853.59 × 44,889.24
  4. Step 4: Simplify right side
    78,872.50x = 4,886,354,926.37
  5. Step 5: Solve for x
    x = 4,886,354,926.37/78,872.50
  6. Step 6: Final answer
    x = 61,952.58

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1.5x scale

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.