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Finding the Fourth Proportional to 78,297.84, 108,056.40 and 44,306.28

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Solution

The fourth proportional to 78,297.84, 108,056.40 and 44,306.28 is: 61,145.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,297.84 : 108,056.40 = 44,306.28 : x
  2. Step 2: Convert to fraction form
    78,297.84/108,056.40 = 44,306.28/x
  3. Step 3: Cross multiply
    78,297.84x = 108,056.40 × 44,306.28
  4. Step 4: Simplify right side
    78,297.84x = 4,787,577,114.19
  5. Step 5: Solve for x
    x = 4,787,577,114.19/78,297.84
  6. Step 6: Final answer
    x = 61,145.71

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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.