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Finding the Fourth Proportional to 78,969.60, 108,983.32 and 44,522.84

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Solution

The fourth proportional to 78,969.60, 108,983.32 and 44,522.84 is: 61,444.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,969.60 : 108,983.32 = 44,522.84 : x
  2. Step 2: Convert to fraction form
    78,969.60/108,983.32 = 44,522.84/x
  3. Step 3: Cross multiply
    78,969.60x = 108,983.32 × 44,522.84
  4. Step 4: Simplify right side
    78,969.60x = 4,852,247,080.18
  5. Step 5: Solve for x
    x = 4,852,247,080.18/78,969.60
  6. Step 6: Final answer
    x = 61,444.49

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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.