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Finding the Fourth Proportional to 76,884.42, 106,100.40 and 43,350.42

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Solution

The fourth proportional to 76,884.42, 106,100.40 and 43,350.42 is: 59,823.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,884.42 : 106,100.40 = 43,350.42 : x
  2. Step 2: Convert to fraction form
    76,884.42/106,100.40 = 43,350.42/x
  3. Step 3: Cross multiply
    76,884.42x = 106,100.40 × 43,350.42
  4. Step 4: Simplify right side
    76,884.42x = 4,599,496,902.17
  5. Step 5: Solve for x
    x = 4,599,496,902.17/76,884.42
  6. Step 6: Final answer
    x = 59,823.52

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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.