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Finding the Fourth Proportional to 78,366.60, 108,145.91 and 44,832.60

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Solution

The fourth proportional to 78,366.60, 108,145.91 and 44,832.60 is: 61,868.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,366.60 : 108,145.91 = 44,832.60 : x
  2. Step 2: Convert to fraction form
    78,366.60/108,145.91 = 44,832.60/x
  3. Step 3: Cross multiply
    78,366.60x = 108,145.91 × 44,832.60
  4. Step 4: Simplify right side
    78,366.60x = 4,848,462,100.50
  5. Step 5: Solve for x
    x = 4,848,462,100.50/78,366.60
  6. Step 6: Final answer
    x = 61,868.99

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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.