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Finding the Fourth Proportional to 78,494.37, 108,290.25 and 44,495.65

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Solution

The fourth proportional to 78,494.37, 108,290.25 and 44,495.65 is: 61,385.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,494.37 : 108,290.25 = 44,495.65 : x
  2. Step 2: Convert to fraction form
    78,494.37/108,290.25 = 44,495.65/x
  3. Step 3: Cross multiply
    78,494.37x = 108,290.25 × 44,495.65
  4. Step 4: Simplify right side
    78,494.37x = 4,818,445,062.41
  5. Step 5: Solve for x
    x = 4,818,445,062.41/78,494.37
  6. Step 6: Final answer
    x = 61,385.87

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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.