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Finding the Fourth Proportional to 78,392.32, 108,181.12 and 44,858.24

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Solution

The fourth proportional to 78,392.32, 108,181.12 and 44,858.24 is: 61,904.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,392.32 : 108,181.12 = 44,858.24 : x
  2. Step 2: Convert to fraction form
    78,392.32/108,181.12 = 44,858.24/x
  3. Step 3: Cross multiply
    78,392.32x = 108,181.12 × 44,858.24
  4. Step 4: Simplify right side
    78,392.32x = 4,852,814,644.43
  5. Step 5: Solve for x
    x = 4,852,814,644.43/78,392.32
  6. Step 6: Final answer
    x = 61,904.21

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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.